Culinary Physics

Breathing Exercise to Fall Asleep in 60 Seconds

2026-10-12T02:00:00.000-07:00

Best Breathing Exercise for Sleep in 4 Simple Steps

A restless night can turn bedtime into a frustrating battle. Your thoughts race ahead.

A simple breathing pattern gives your attention somewhere else to go. It may help you settle down, though no method can guarantee sleep in exactly 60 seconds.

The best breathing exercise for sleep depends on what feels comfortable. The popular 4-7-8 method is one option. Box breathing, the 4-8 method and diaphragmatic breathing offer alternatives if you dislike holding your breath.

What to Know

The 4-7-8 breathing method uses a four-count inhale, a seven-count breath hold and an eight-count exhale.

Box breathing follows four equal phases and is often called a military breathing technique for sleep.

If breath holds feel uncomfortable, try slow breathing with a longer exhale or gentle belly breathing.

What is the 4-7-8 Breathing Method?

The 4-7-8 breathing method is a paced exercise popularized by Dr. Andrew Weil. It is known as the “relaxing breath” and comes from an ancient yogic practice.

This ancient yogic practice "relaxing breath" acts as a "natural tranquilizer" for the nervous system. It lowers your heart rate, triggers your "rest and digest" response, reducing anxiety, quietens a racing mind and activate your body's relaxation response.

The pattern asks you to breathe in for four counts, hold for seven and breathe out for eight.

The longer exhale and steady counting are intended to encourage calm. Counting also gives your mind a simple task when stressful thoughts keep returning.

How to Do the 4-7-8 Breathing Exercise

Lie down in a comfortable position. Place the tip of your tongue against the roof of your mouth, just behind your front teeth. Keep it there throughout the exercise.

1) Breathe out fully through your mouth, making a soft whoosh.

2) Close your mouth and inhale quietly through your nose for four seconds.

3) Hold your breath for seven seconds.

4) Exhale through your mouth for eight seconds with your lips gently pursed. Make the soft whoosh again.

5) Repeat the cycle for four to eight rounds.

Keep the breath controlled, not strained. Move at a pace you can manage, and stop pushing the pattern if it makes you uncomfortable.

What if Holding your Breath Feels Difficult?

There are other best breathing exercises for sleep. If holding your breath for 7 seconds feels uncomfortable, try one of these highly effective, beginner-friendly options.

Choose one easier rhythm instead:

1. Try the 4-8 Rest and Digest Method. A simplified extension variation that emphasizes a long exhale to rapidly slow down your body.

Place your right hand over your heart and your left hand on your stomach. Inhale through your nose for four seconds. Then exhale slowly through your nose for eight seconds.

Repeat for ten rounds. Follow the timing gently instead of pulling in a huge breath or trying to empty your lungs with force.

Making your exhalation twice as long as your inhalation triggers your parasympathetic nervous system to quickly slow down your body.

2. Use Box Breathing, the military breathing technique for sleep

Box breathing, also called square breathing, divides the breath into four equal parts. It is used by military professionals to manage stress. Picture tracing a square, with one side for each part of the cycle.

a) Inhale for four seconds.

b) Hold your breath for four seconds.

c) Exhale for four seconds.

d) Pause with your lungs empty for four seconds.

e) Repeat for four to five rounds.

Keep each phase even and relaxed. If the empty pause feels uncomfortable, return to normal breathing rather than trying to complete the count.

3. Diaphragmatic (Belly) Breathing

Belly breathing shifts your attention toward the movement of your abdomen. Place one hand on your chest and the other on your belly. Inhale through your nose and let your belly rise while keeping your chest as still as you comfortably can.

Exhale slowly through pursed lips. Keep the movement easy and natural. You are aiming for calm, steady breathing, not the biggest breath possible.

RELATED POST: What Does the Pink Noise Do?

Quick Tips for Success: How to Fall Asleep When You Can‘t

This is how you can make breathing exercises easier:

Do not strain. If you feel lightheaded or uncomfortable, stop the pattern and breathe normally. Comfort matters more than finishing every round.

Use the count as an anchor. Bring your attention back to the numbers when thoughts about the day start looping.

Adjust the pace. If the timing feels too demanding, count more quickly while keeping the same ratio for the 4-7-8 pattern.

Choose one method. Give yourself time to learn a rhythm instead of switching techniques after every breath.

You might not fall asleep during the first round. The immediate task is to breathe comfortably and shift attention away from the pressure to fall asleep.

Which Breathing Exercise Should You Try Tonight?

Start with 4-7-8 breathing if you can comfortably hold your breath. Choose the 4-8 method if a longer, slower exhale feels more natural. Try box breathing when equal stages help you focus, or belly breathing when you prefer to follow the movement of your body.

There is no need to treat sleep like a race. Pick a method, keep the effort gentle and let the counting occupy your attention. The aim is to make bedtime feel calmer, one breath at a time.

RELATED POST: Why is Watching a Fire so Relaxing?

FREQUENTLY ASKED QUESTIONS

Can a breathing exercise make you fall asleep in 60 seconds?

The timing varies, and no breathing exercise can guarantee that you will fall asleep within a minute. These techniques give you a simple rhythm to follow while you settle down.

What is the military breathing technique for sleep?

Box breathing is a paced technique with four equal stages. Inhale for four seconds, hold for four seconds, exhale for four seconds and pause for four seconds. Repeat for four to five rounds.

References:

Balban, M. Y., Neri, E., Kaelberer, M. M., Irwin, L., Rangaprakash, D., Singh, B., Huberman, A. D., & Spiegel, D. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1), 100895. https://doi.org/10.1016/j.xcrm.2022.100895

Ma, X., Yue, Z. Q., Gong, Z. Q., Zhang, H., Duan, N. Y., Shi, Y. T., Wei, G. X., & Li, Y. F. (2017). The effect of diaphragmatic breathing on attention, negative affect and stress in healthy adults. Frontiers in Psychology, 8, Article 874. https://doi.org/10.3389/fpsyg.2017.00874

Tsai, H. J., Kuo, T. B., Lee, G. S., & Yang, C. C. (2015). Efficacy of paced breathing for insomnia: Enhancing vagal activity to improve sleep. Psychophysiology, 52(3), 388–396. https://doi.org/10.1111/psyp.12333

Vierra, J., Boonla, O., & Prasertsri, P. (2022). Effects of sleep deprivation and 4-7-8 breathing control on heart rate variability, blood pressure, blood glucose, and endothelial function in healthy young adults. Physiological Reports, 10(13), e15389. https://doi.org/10.14814/phy2.15389

Zaccaro, A., Piarulli, A., Laurino, M., Garbella, E., Menicucci, D., Neri, B., & Gemignani, A. (2018). How breath-control can change your life: A systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience, 12, Article 353. https://doi.org/10.3389/fnhum.2018.00353

Urolithin A Benefits, Side Effects and Safety Guide

2026-10-06T05:00:00.000-07:00

Urolithin A has drawn attention because it may help cells deal with worn-out mitochondria. The compound is a natural gut metabolite created when certain gut bacteria break down ellagitannins (Ellagic Acid) found in foods such as pomegranates, berries and walnuts.

That process matters because Urolithin A is linked to mitophagy, a cellular process that clears damaged mitochondria and supports mitochondrial recycling.

For health-conscious individuals curious about Urolithin A benefits and side effects, the picture is promising but still developing. Human trials suggest possible gains in muscle endurance, walking capacity and strength.

Research also points to effects on inflammation and other areas of health. Yet long-term safety data remain limited.

Points to Remember

No food naturally contains urolithin A. Your gut bacteria make this postbiotic molecule after you eat foods that contain ellagitannins and ellagic acid. Urolithin A is a natural gut metabolite linked to mitophagy and mitochondrial recycling.

Supplements are designed to bypass that problem and provide a steady dose.

Clinical trials report gains in muscle endurance, walking capacity and strength after supplementation.

Long-term safety and medication interactions remain uncertain in current human trials so far.

The simple idea is easy to understand. Cells rely on mitochondria for energy. When damaged mitochondria build up, they can become less effective.

Urolithin A may help cells in removing dysfunctional mitochondria. Healthier mitochondria can then support better cellular energy production.

Urolithin A benefits: What Can Urolithin A Do?

1) One of the main findings involves physical performance. Clinical trials using daily doses of 500 mg to 1,000 mg have reported improvements in muscle endurance and walking capacity.

Hamstring strength has also increased by roughly 10% to 12% in the reported trials.

That does not mean every person will experience the same result. The findings describe clinical trial outcomes. Individual responses can vary.

2) Inflammation is another area of interest. Urolithin A has been reported to lower several inflammatory biomarkers, including C-reactive protein, IL-1β and TNF-α. These findings support continued interest in its possible role in age-related inflammation.

3) Heart health has also entered the discussion. Early research suggests Urolithin A may lower ceramides, a type of blood fat linked to heart disease risk.

The evidence is early, so this should be viewed as a potential effect rather than a proven heart-health treatment.

4) Joint health is being studied too. Preclinical research suggests Urolithin A may reduce cartilage breakdown and ease joint pain in conditions such as osteoarthritis.

5) Urolithin A skin benefits. There is also interest in possible cellular anti-aging effects. Studies point to antioxidant and neuroprotective properties that may help address age-related cellular decline.

What About Urolithin A Benefits for Women?

Specific Considerations for Women. Women have some specific areas of interest. Early preclinical research suggests Urolithin A may help protect ovarian follicles and reduce follicle loss caused by chemotherapy. That finding concerns ovarian follicles rather than confirmed fertility outcomes in women.

That finding is worth watching, but it is still preclinical. Human data on female-specific hormonal outcomes remain limited. Clinical trials have generally found good tolerability, yet that does not establish a specific benefit for women's hormones or reproductive health.

Pregnant or breastfeeding women should avoid Urolithin A supplements until more data are available.

What are the Side Effects of Urolithin A?

Urolithin A has generally been well tolerated in clinical trials. High doses may cause mild digestive problems in some people. Reported issues include bloating, nausea, stomach upset and softer stools.

Long-term safety is a separate question. Human trials lasting for shorter periods and using doses up to 1,000 mg per day have not reported severe safety issues during the periods studied. However, long-term safety data remain limited.

Medication interactions are another unresolved area. Potential interactions with other drugs have not been fully studied. Anyone taking medication should treat that uncertainty seriously before adding a supplement.

How to Get It: Can Food Give You Urolithin A?

Your body can produce Urolithin A after eating foods rich in ellagic acid and ellagitannins. Pomegranates, walnuts, strawberries and raspberries are listed among the foods that can provide these compounds.

But there is a catch. About 60% of people may lack the specific gut bacteria needed to produce Urolithin A from food alone. That means eating these foods does not guarantee that your body will make the metabolite.

Supplements are designed to bypass that limitation and provide a direct, steady dose. That can make them appealing to people who want a more predictable intake in a supplement form.

Still, the strongest point is not that Urolithin A solves aging, inflammation, muscle decline or joint problems. The more accurate view is that it is a promising compound with early human findings and important unanswered questions.

Urolithin A effects on mitochondria make it scientifically interesting. Its clinical results make it worth watching. Its long-term safety and several proposed benefits still need more evidence.

For now, the story is about potential. Urolithin A may help the body manage damaged mitochondria and support muscle performance. It may also influence inflammatory markers and other health-related pathways. But those possibilities deserve the same thing any emerging supplement needs, careful attention to both what the evidence shows and what it still cannot answer.

RELATED POST: Top 5 Urolithin A Rich Foods

Frequently Asked Questions

What is Urolithin A?

Urolithin A is a natural gut metabolite produced when certain gut bacteria break down ellagitannins found in foods such as pomegranates, berries and walnuts. It is linked to mitophagy, the process that clears damaged mitochondria.

What are the main Urolithin A side effects?

Clinical trials generally report good tolerability. Higher doses may cause mild digestive symptoms such as bloating, nausea, stomach upset or softer stools. Long-term safety and medication interactions remain less certain.

References:

D'Amico, D., Olmer, M., Fouassier, A. M., et al. (2022). Urolithin A improves mitochondrial health, reduces cartilage degeneration, and alleviates pain in osteoarthritis. Aging Cell, 21(8), e13662. https://doi.org/10.1111/acel.13662

He, Y., Yocum, L., Alexander, P. G., et al. (2021). Urolithin A Protects Chondrocytes From Mechanical Overloading-Induced Injuries. Frontiers in Pharmacology, 12, 703847. https://doi.org/10.3389/fphar.2021.703847

Liu, S., D’Amico, D., Shankland, E., et al. (2022). Effect of Urolithin A Supplementation on Muscle Endurance and Mitochondrial Health in Older Adults. JAMA Network Open, 5(1), e2144279. https://doi.org/10.1001/jamanetworkopen.2021.44279

Liu, S., Faitg, J., Tissot, C., et al. (2025). Urolithin A provides cardioprotection and mitochondrial quality enhancement preclinically and improves human cardiovascular health biomarkers. iScience, 28(1), 111814. https://doi.org/10.1016/j.isci.2025.111814

Singh, A., D’Amico, D., Andreux, P. A., et al. (2022). Urolithin A improves muscle strength, exercise performance, and biomarkers of mitochondrial health in a randomized trial in middle-aged adults. Cell Reports Medicine, 3(5), 100633. https://doi.org/10.1016/j.xcrm.2022.100633

Top 5 Urolithin A Rich Foods

2026-10-01T02:00:00.000-07:00

Can your food help your gut make urolithin A? Yes, in an indirect way.

What are the natural food sources of Urolithin A? No food naturally contains urolithin A. Your gut bacteria make this postbiotic molecule after you eat foods that contain ellagitannins and ellagic acid.

Your microbiome determines whether that conversion can happen efficiently. Clinical data suggests only about 30% to 40% of people carry the bacterial strains needed for efficient urolithin A production.

Eating the right foods supplies the raw materials, but your gut bacteria still have to do the work.

Top 5 Ellagitannins Rich Foods- Natural Sources

For those who have gut microbiome that are capable producers, the top 5 dietary sources highest in these critical Urolithin A precursors include:

1) Pomegranate

Pomegranate stands out as the richest food source of ellagitannins among the foods listed here. Punicalagins are the main compounds to know.

The peel contains the highest concentration, but it is not edible. Choose raw arils or minimally processed, low-heat pomegranate juice. These provide dietary precursors your gut microbes can use.

2) Walnuts

Walnuts rank among the richest nuts in ellagitannins. Much of these compounds are concentrated in the thin skin around the nut.

Keep the skin when you eat walnuts. Fresh raw walnuts work well. Lightly roasted walnuts are another option.

Human clinical trials consistently show that eating fresh, raw, or lightly roasted walnuts reliably results in detectable urolithins in the body.

3) Raspberries

Red raspberries contain two named ellagitannins, sanguiin H-6 and lambertianin C.

Raw raspberries or flash-frozen berries help preserve these polyphenols better than high-heat cooking. They are easy to add to oatmeal, yogurt or a snack.

4) Strawberries

Strawberries supply a robust amount of ellagic acid. Fresh whole strawberries provide another source of the raw material used in the gut's postbiotic production process.

They are simple to add to your routine. A bowl of fresh berries can fit into an ordinary diet without much effort.

5) Pecans

Pecans contain ellagitannins and ellagic acid in their seed coats. Like walnuts, they provide a convenient food-based way to increase your intake of urolithin A precursors.

Try them raw or lightly toasted. They also work on salads or as a snack.

Precursor Content Comparison

Food Source	Primary Precursor Compounds	Best Way to Consume for Maximum Potency
Pomegranate	Punicalagins, Ellagic acid	Fresh arils or 100% pure, low-heat processed juice
Walnuts	Ellagitannins	Raw or lightly roasted with the skins fully intact
Raspberries	Sanguiin H-6, Lambertianin C	Fresh or raw frozen (avoid high-heat jams)
Strawberries	Ellagic acid	Fresh, whole fruit
Pecans	Ellagitannins, Ellagic acid	Raw or lightly toasted as a snack or salad topper

If you want to maximize your body's efficiency, you can also support your microbiome by eating a diverse, fiber-rich, plant-based diet to encourage the growth of the necessary gut bacteria.

What your Microbiome Has to Do With It

Your gut needs certain microbes to convert ellagic acid into urolithins. The bacterial groups identified here include members of the Eggerthellaceae family, including Gordonibacter species.

Eating pomegranates or berries does not guarantee urolithin A production. Your microbiome has to contain bacteria that can perform the conversion.

Five Habits that Support the Process of Natural Production of Urolithin A

Here are the most effective, science-backed habits to optimize your microbiome for Urolithin A production:

1) Maintain a consistent precursor intake

Your gut microbes need a steady supply of raw materials to thrive and multiply.

The Strategy: Regularly rotate the precursor foods like pomegranates, walnuts, raspberries, strawberries and pecans into your daily diet.

Why it works: Intermittent exposure doesn't give the specific urolithin-producing bacteria enough consistent "food" to colonize your gut long-term.

2) Eat a wide range of plant foods

The overall health and abundance of your microbiome dictate how well specialized bacteria can function.

The Strategy: Aim for 30+ different plant foods per week. Include a wide variety of vegetables, legumes/beans, whole grains, seeds and fruits.

Why it works: A diverse microbiome creates a resilient ecosystem. High-fiber diets produce Short-Chain Fatty Acids (SCFAs), which lower your gut's pH and create the ideal environment for beneficial, specialized bacteria to flourish.

3) Add targeted prebiotics

Prebiotics act as fertilizers for healthy gut bacteria. To support Urolithin A production, focus on specific fibers that these bacteria love:

Inulin and FOS (Fructooligosaccharides): Found heavily in chicory root, Jerusalem artichokes, garlic, onions, leeks and asparagus.

Resistant Starch: Found in cooked and cooled potatoes or rice, green bananas and oats.

4) Cut back on heavily processed foods

Industrial food additives can actively degrade the delicate environment your gut needs.

The Strategy: Minimize foods containing common emulsifiers (like carboxymethylcellulose and polysorbate-80), artificial sweeteners and heavy preservatives.

Why it works: These ingredients can erode the protective mucosal layer of your gut and disrupt the balance of your microbiome, making it much harder for urolithin-producing bacteria to survive.

5) Add other polyphenol-rich foods

Green tea, dark chocolate with at least 70% cocoa and extra virgin olive oil are suggested as complementary choices. The idea is to provide a mix of polyphenols that may support microbial activity and postbiotic production.

FAQ

Can Everyone Make Urolithin A?

NO. Production depends on whether your gut microbiome contains the needed bacterial strains. Clinical data suggests that only about 30% to 40% of people have the strains required for efficient conversion.

Which Foods Provide the Main Precursors?

Pomegranates, walnuts, raspberries, strawberries and pecans are the top five foods. They supply ellagitannins or ellagic acid that gut bacteria can use in the pathway toward urolithin production.

A Simple Way to Use This Information

You do not need all five foods at once. Rotate them regularly through your week. Add walnuts and raspberries to oatmeal. Keep fresh strawberries nearby for a snack. Use pomegranate arils with meals or choose low-heat processed juice. Sprinkle pecans over a salad.

Then build the bigger habit around them. Eat more types of plant foods. Include prebiotic fiber. Keep heavily processed foods lower in your routine.

Urolithin A begins with food, but food alone does not determine the outcome. The compounds have to reach a gut microbiome capable of converting them. For people who can make urolithin A efficiently, these five foods provide a practical place to start.

Summary of Daily Habits for Urolithin A Activation

Daily Habit	Target Action	Simple Example
Feed the Microbes	Deliver raw precursors	Add walnuts and raspberries to your morning oatmeal.
Fertilize the Gut	High-inulin prebiotic foods	Sauté garlic and leeks into your dinner dishes.
Protect the Lining	Avoid microbial disruptors	Cook whole, fresh foods instead of buying packaged meals.
Hydrate with Polyphenols	Synergistic metabolic support	Swap a afternoon coffee for a cup of loose-leaf green tea.

References:

Beltrán, D., Romo-Vaquero, M., Espín, J. C., Tomás-Barberán, F. A., & Selma, M. V. (2018). Ellagibacter isourolithinifaciens gen. nov., sp. nov., a new member of the family Eggerthellaceae, isolated from human gut. International Journal of Systematic and Evolutionary Microbiology, 68, 1707-1712. https://doi.org/10.1099/ijsem.0.002735

Cortés-Martín, A., Iglesias-Aguirre, C. E., Marín, A., et al. (2024). Urolithin A production drives the effects of pomegranate on the gut microbial metabolism of bile acids and cholesterol in mild dyslipidaemic overweight and obese individuals. Food & Function, 15, 2422-2432. https://doi.org/10.1039/d3fo05014a

Liu, S., D’Amico, D., Shankland, E., et al. (2022). Effect of Urolithin A Supplementation on Muscle Endurance and Mitochondrial Health in Older Adults. JAMA Network Open, 5, e2144279. https://doi.org/10.1001/jamanetworkopen.2021.44279

Singh, A., D’Amico, D., Andreux, P. A., et al. (2022). Urolithin A improves muscle strength, exercise performance, and biomarkers of mitochondrial health in a randomized trial in middle-aged adults. Cell Reports Medicine, 3, 100633. https://doi.org/10.1016/j.xcrm.2022.100633

Zhang, M., Cui, S., Mao, B., et al. (2022). Ellagic acid and intestinal microflora metabolite urolithin A: A review on its sources, metabolic distribution, health benefits, and biotransformation. Critical Reviews in Food Science and Nutrition, 63, 6900-6922. https://doi.org/10.1080/10408398.2022.2036693

Why is Watching a Fire so Relaxing?

2026-09-28T02:00:00.000-07:00

Click to enlarge infographic

Why are fireplace sounds so relaxing?

Why does the sound of a crackling fire make it so easy to relax at night? 🔥😴

Those soft pops and crackles can act like natural white noise and help block out annoying sounds.

They can also make everything around you feel quieter and more peaceful.

For thousands of years people gathered around fires for warmth, food and protection.

So the sound of a fire may still give our brains that same feeling of being safe and cozy.

The random crackles also give your mind something simple to focus on without making you think too much.

That can help distract you from stress, overthinking and all the random thoughts that show up at bedtime.

Sometimes all you need is a warm blanket, a crackling fire and a few minutes to just relax. 🔥

What are the Benefits of Watching a Fireplace Video?

A fireplace can hold your attention without asking much from you. The flames move. The logs crackle. Nothing demands an answer. That simple combination may explain why a fireplace video can feel strangely calming.

Flames flicker in a rhythmic yet unpredictable way. Your attention can settle on the motion without having to track a plot, solve a problem or process a flood of information.

A virtual fireplace can create a relaxing visual and auditory experience that resembles sitting near a real fire. The warmth of the colors, the movement of the flames and the sound of burning wood can work together to encourage physical and mental relaxation.

That difference is easy to feel after a long day. A movie asks you to keep up. A fireplace simply sits there and burns.

WATCH VIDEO: Fireplace Cozy Ambience for Sleeping • 12 Hours • No ADS • 4k • NO AI • NO MUSIC (crackling sounds)

Here is how turning on a fireplace video enhances your well-being:

1) Lowers Blood Pressure and Heart Rate

A randomized controlled trial found that watching a virtual fire on a screen, especially with sound, was linked with lower blood pressure. The study also found a cumulative effect. Participants showed greater physical relaxation as they watched the fire for longer.

That finding helps explain why fireplace videos can feel more relaxing over time. The effect is not just about the first few seconds of flickering light. Sitting with the scene may allow the body to settle gradually.

Still, the evidence does not establish that every fireplace video will produce the same response in every person.

2) Triggers "Feel-Good" Brain Chemicals

The multisensory experience of a virtual fire stimulates the brain to release a cocktail of mood-boosting neurotransmitters, including dopamine, endorphins, and serotonin. These chemicals naturally uplift your overall mood and reduce physical tension.

The combination of flickering flames and crackling wood may help move attention away from a tense mental state. The experience may reduce stress and cortisol while supporting the parasympathetic nervous system.

In simple terms, the body can shift away from constant alertness and toward rest.

That matters because relaxation often begins with fewer demands on attention. A fireplace gives your mind something to notice without forcing it to work hard.

3) Reductions in Stress and Cortisol

Why does fire have a calming effect? The rhythmic, unpredictable flicker of the flames combined with the auditory pop of burning wood lowers cortisol (the primary stress hormone) levels.

It shifts your nervous system out of a stressed "fight-or-flight" state and activates the parasympathetic nervous system, sending a deep signal to your body that you are safe and can rest.

4) Encourages Passive Meditation and Focus

Unlike television shows or movies that demand intense cognitive processing, a fireplace video acts as a form of open monitoring or passive meditation. It anchors your attention softly without draining your mental energy, making it an excellent backdrop for mindfulness practices, journaling, or studying.

That makes a virtual fireplace useful as a backdrop for quiet activities. You might use one while journaling, practicing mindfulness or studying.

The appeal is the low cognitive load. There is something happening, but there is very little to keep up with.

5) Improves Sleep and Melatonin Prep

Can fireplace colors help you relax at night? Standard LED screens emit sharp blue light that disrupts your circadian rhythm. In contrast, fireplace videos emit warm, soft orange and red tones.

Watching these soothing colors in the evening tricks the brain into recognizing that it is nighttime, promoting the natural production of melatonin and easing you into a deep sleep.

💡 Pro-Tip for Maximum Benefits: Turn the Sound On

When utilizing virtual fireplaces, audio is critical. Researchers noted that when the sound of the crackling logs was muted, the relaxation benefits became inconsistent and some viewers actually became restless or bored.

To get the full therapeutic effect, ensure you can hear the high-quality, crisp pops and snaps of the wood.

What is the simplest way to use a fireplace video?

Keep the experience simple.

Choose a fireplace video with realistic flame movement and clear crackling audio. Let it play while you read, journal, study or wind down. Avoid turning it into another demanding screen activity.

Then pay attention to your own response.

Do your shoulders loosen? Does your breathing feel calmer? Does the constant movement give your mind somewhere quiet to rest?

The same simplicity can make the ritual easy to repeat. You do not need to learn a technique or follow instructions. The fire becomes a quiet backdrop that supports the moment instead of taking it over.

A fireplace video works because it asks for very little. You watch. You listen. The scene keeps moving without asking you to chase it.

And that may be the real reason fireplace sounds feel so relaxing. They give your attention a soft place to land while the rest of the world, for a few minutes, can stay outside the room.

RELATED POST: What Does the Pink Noise Do?

References:

Alvarsson, J. J., Wiens, S., & Nilsson, M. E. (2010). Stress recovery during exposure to nature sound and environmental noise. International Journal of Environmental Research and Public Health, 7(3), 1036–1046.

Buxton, R. T., Pearson, A. L., Allou, C., Fristrup, K., & Wittemyer, G. (2021). A synthesis of health benefits of natural sounds and their distribution in national parks. Proceedings of the National Academy of Sciences, 118(14), e2013097118. https://doi.org/10.1073/pnas.2013097118

Chang, A.-M., Aeschbach, D., Duffy, J. F., & Czeisler, C. A. (2015). Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness. Proceedings of the National Academy of Sciences, 112(4), 1232–1237. https://doi.org/10.1073/pnas.1418490112

Kaplan, S. (1995). The restorative benefits of nature: Toward an integrative framework. Journal of Environmental Psychology, 15(3), 169–182. https://doi.org/10.1016/0272-4944(95)90001-2

Lynn, C. D. (2014). Hearth and campfire elicit relaxation responses in adults: Fire, sound, and the evolutionary psychology of social responses. Evolutionary Psychology, 12(5), 147470491401200509. https://doi.org/10.1177/147470491401200509

Ulrich, R. S., Simons, R. F., Losito, B. D., Fiorito, E., Miles, M. A., & Zelson, M. (1991). Stress recovery during exposure to natural and urban environments. Journal of Environmental Psychology, 11(3), 201–230. https://doi.org/10.1016/S0272-4944(05)80184-7

What Does the Pink Noise Do?

2026-09-18T02:00:00.000-07:00

Pink Noise Benefits for Brain

A sound may be doing something remarkable while you sleep. MIT researchers found that precisely timed bursts of pink noise can strengthen slow brain waves and increase waves of cerebrospinal fluid. Those fluid waves help move waste away from the brain during sleep.

• The study found stronger slow brain waves and larger CSF waves.

• The effect depended on delivering pink noise at the right moment.

The experiment does not show that playing pink noise all night improves sleep. Timing was the heart of the test.

What Did the MIT Study Find?

Researchers tested 14 healthy volunteers while they slept. They delivered 50-millisecond bursts of pink noise when slow electrical waves in the brain reached their peak.

The sound was quiet enough that the participants did not wake. After stimulation, researchers saw larger slow electrical waves. They also saw larger cerebrospinal fluid waves, or CSF waves.

Why Does Cerebrospinal Fluid Matter?

Cerebrospinal fluid surrounds and cushions the brain and spinal cord. It also helps supply nutrients such as glucose and remove waste produced by brain cells.

During sleep, CSF moves in waves through the brain. These waves are closely linked with slow brain waves associated with deep sleep.

The new findings suggest that the two rhythms can be influenced together. Stronger slow waves produced larger CSF waves in the experiment.

How Does the Brain Move CSF?

The researchers found that slow brain waves affect blood vessels. The vessels constrict and dilate. This creates a pumping action that helps drive CSF through the brain.

Slow waves occur during non-REM sleep. They become more prominent during deeper stages of sleep.

That creates a simple chain. Pink noise strengthens slow brain activity. Stronger slow activity produces larger CSF waves. Larger waves may increase fluid movement through the brain.

How Was the Pink Noise Delivered?

Pink noise contains all sound frequencies humans can hear. Its lower frequencies are louder than its higher frequencies. The researchers needed to know exactly when each slow wave peaked. They used EEG to monitor brain activity and fMRI to measure CSF flow.

That created a technical problem. The magnetic fields from the fMRI scanner interfere with EEG signals.

The team developed a method that could remove this noise in less than 100 milliseconds. They also created an algorithm that predicted the next slow-wave peak.

The system could then deliver the pink noise at the intended moment.

Does This Mean Pink Noise Improves Sleep?

From the research, it is not yet known whether this improves sleep.

The experiment showed stronger slow electrical waves and stronger CSF waves. It did not prove that participants felt more refreshed.

The researchers hope to learn whether stronger CSF movement could eventually help with conditions such as Alzheimer’s disease.

MIT researchers now want to test whether enhanced CSF flow can help produce more restorative sleep. They are especially interested in people with insomnia.

They also plan to study whether stronger CSF movement could affect memory or cognitive function. Another goal is to explore whether better brain waste clearance could help in Alzheimer’s disease.

Harmful proteins such as amyloid beta and tau can build up in the brain in neurodegenerative disease. The researchers hope improved waste clearance may eventually help slow or prevent that buildup.

Those possibilities remain unproven. The current experiment demonstrated a change in brain and CSF dynamics. It did not establish a treatment.

Could a Pink Noise App Recreate the Effect?

Not from this experiment alone.

The researchers did not simply play a continuous pink noise track. Their system monitored brain activity in real time. It predicted the peaks of slow waves. It then delivered extremely short sound bursts at those moments.

Timing appears central to the method.

Lead author Joshua Levitt, PhD has started a company that hopes to develop technology such as a headband that could deliver auditory stimulation at the right time during sleep.

What Should You Remember?

Sleep is more active than it may seem. Slow brain waves and CSF waves move in a coordinated rhythm. That movement is linked with the brain’s handling of waste.

MIT researchers found that carefully timed sound can make those waves larger in healthy adults. The next question is whether changing that rhythm can improve outcomes people can measure.

For now, the evidence supports a narrower claim. A precisely timed 50-millisecond burst of pink noise increased slow brain waves and CSF waves in 14 healthy sleepers.

The method is still experimental. Benefits for everyday sleep have yet to be established.

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FAQ

Can pink noise improve sleep?

The MIT study found stronger slow brain waves and CSF waves after precisely timed pink noise bursts. It did not prove that participants experienced better sleep.

Does pink noise clear brain waste?

The study found larger CSF waves, which help move fluid through the brain during sleep. It did not directly prove that pink noise removes more waste or prevents Alzheimer’s disease.

Reference:

Levitt, J., Zeng, X., Yang, Z., Jacob, L. P. L., & Lewis, L. D. (2026). Closed-loop auditory stimulation in phase with slow waves during sleep enhances cerebrospinal fluid flow in humans. Science Translational Medicine, 18(866), eaea5469. https://doi.org/10.1126/scitranslmed.aea5469