Anxiety & Stress

Physiologically grounded tools to calm acute stress and everyday anxiety, drawn from named experts and built around the nervous system, not willpower.

Every claim below carries an evidence grade. What do these grades mean?

Kelly McGonigal, PhDHealth PsychologistStanford University School of Medicine ► OPEN THE SOURCE

KELLY MCGONIGAL, PHD ANXIETY

Treating a racing heart as your body helping you changes how stress hits you

the expert's own view, educational, not medical advice, not endorsed by us

LimitedViewing stress arousal as helpful rather than harmful shifts the cardiovascular stress response (expert opinion from a TED talk, not a clinical trial)

SOURCE →

ANDREW HUBERMAN ANXIETY

Calm down in five minutes with one breath

the expert's own view, educational, not medical advice, not endorsed by us

StrongTwo inhales through the nose, one long slow exhale
StrongFive minutes a day, done daily, not only when panicked
StrongBeat equal-time meditation on mood in a 111-person trial

SOURCE →

Mark Hyman

DEPRESSION

Brain & Mood Protocol

1Feed the brain (Wild fatty fish (salmon, sardines, mackerel), nuts and seeds (walnuts, flax, chia), colourful vegetables; cut sugar, refined carbs, alcohol and excess caffeine)
2Take EPA/DHA omega-3 (1000mg+ combined EPA and DHA daily, adjusted to your omega-3 blood level)
3Add a methylated B-complex (A B-complex with methylfolate, methyl-B12 and B6 to support methylation and healthy homocysteine)

What to buy

Thorne Vitamin D-5,000 ~$18

(methylated) ~$22

Thorne Theanine ~$24

Multivitamin ~$30

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Wim Hof

ANXIETY

Breathwork & Cold Protocol

1Power-breath rounds with retention (3 to 4 rounds: 30 to 40 deep breaths, then exhale and hold as long as comfortable, then a ~15 sec recovery hold)
2Stay focused and relaxed throughout (Sit or lie down, eyes closed, attention on the breath)
3Finish with deliberate cold (Start with 1 to 2 min cold shower; progress over weeks toward a plunge)

What to buy

Cold plunge tub ~$1190

Guided breathwork course or app

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ANXIETY

Calm the Stress Response

1Do cyclic sighing (the physiological sigh) (Double inhale through the nose, long slow exhale through the mouth; repeat ~5 minutes; use it the instant stress spikes)
2Move your body (Most days: a brisk walk, a workout, anything you will repeat; outdoors and social add benefit)
3Keep sleep consistent (Regular sleep and wake times; wind-down routine; see the sleep protocols)

What to buy

Nutricost KSM-66 Ashwagandha ~$17

Thorne Magnesium Bisglycinate ~$32

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Andrew Huberman

ANXIETY

Non-Sleep Deep Rest (NSDR)

1Lie down somewhere you will not be disturbed (Flat on your back, support under the knees if needed; ideally not your bed, to protect the bed-sleep link)
2Use a free guided NSDR or yoga nidra recording (10, 20 or 30 minutes; Huberman's own recordings and many yoga-nidra tracks are free online)
3Use it to restore focus and energy (10 to 20 minutes mid-morning or early afternoon; great after a poor night or before deep work)

What to buy

Eye mask ~$35

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Andy Galpin

ANXIETY

Breathing & CO2 Tolerance

1Measure your controlled exhale (Take 4 easy breaths, then a full inhale, then exhale as slowly as possible through pursed lips; time the exhale. Same time of day, ideally morning)
2Read the number as a trend, not a verdict (~30 to 60s controlled exhale suggests well-recovered; a short, strained exhale suggests stress or fatigue. Compare only to your own baseline)
3Breathe through your nose by default (Nasal breathing at rest and in easy training; Galpin calls it a 'cheat code' for better mechanics)

What to buy

Mouth / nasal tape ~$15

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Sara Gottfried

MENOPAUSE

Cortisol, Stress & Perimenopause

1Morning light and a consistent wake time (Daylight soon after waking and a regular schedule, so cortisol peaks in the morning as it should)
2Understand the curve before testing anything (Cortisol rises sharply in the first 30 to 45 minutes after waking (the cortisol awakening response), then falls through the day and bottoms out at night. A single random reading has no context without knowing the time it was taken)
3Understand the limits of consumer cortisol tests (Salivary cortisol testing is validated for specific clinical questions, most notably a late-night sample to help screen for Cushing's syndrome, but a single consumer strip or at-home panel cannot diagnose "burnout" or a "wrecked" cortisol system)

What to buy

Thorne Magnesium Bisglycinate ~$32

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Wim Hof

ANXIETY

The Wim Hof Breathing Method

1Sit or lie down, away from water (Always practise seated or lying down; never near water, in a bath, or while driving or standing (see cautions))
2Take 30 to 40 deep breaths (30 to 40 full breaths, inhale deeply, let the exhale fall out, in a steady rhythm)
3Breathe out and hold on empty (After the last breath, exhale and hold with empty lungs as long as is comfortable (often 1 to 3 min))

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Tim Ferriss

ANXIETY

Fear-Setting

1Write the 'What if I...?' at the top (State the specific thing you are afraid to do (ask, quit, start, end, move))
2List the worst-case scenarios (Write 10 to 20 specific worst things that could happen if you act; do not hold back)
3List how to reduce each (For each fear, note what you could do to make it less likely)

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Martin Picard

ANXIETY

Stress, Energy & Grey-Hair Reversal

1Do a short daily meditation or breathwork (10 minutes each morning (Picard uses the Waking Up app); consistency matters more than length)
2Resolve or remove sources of unrelenting stress (Audit your recurring stressors and act on the chronic, unresolved ones; short bursts of stress are fine and even useful)
3Do regular aerobic / endurance exercise (Most days: Zone 2 cardio plus some harder efforts; endurance training can substantially raise muscle mitochondrial density)

What to buy

Nutricost KSM-66 Ashwagandha ~$17

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Gary Brecka

ANXIETY

Brecka's Morning Breathwork

1Get outside and set up (Sit or lie somewhere quiet, ideally outside whatever the weather, feet on the ground, with skin and eyes exposed to early sunlight.)
2Start at 3 rounds of 5 breaths (Beginners: three rounds of five deep breaths. Add one breath per round each day, working up over weeks to three rounds of thirty.)
3Big, deep belly breaths (Pull your belly button outward, fill the lungs from the bottom up with big deliberate breaths, then relax the exhale. Keep the pace steady through the round.)

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Dean Ornish

HEART HEALTH

Stress Less the Ornish Way

1Practice a short daily meditation (Sit quietly for even 5 to 15 minutes a day and focus on your breath or a simple word. Longer is fine once it becomes a habit.)
2Do some gentle yoga or stretching (Move slowly and gently: easy yoga poses, stretches and relaxation. The goal is to unwind, not to work out.)
3Use slow breathing when stress hits (Breathe slowly and deeply, making your out-breath longer than your in-breath, for a minute or two. Use it whenever you feel wound up.)

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Andrew Huberman

ANXIETY

Calm anxiety in the moment

1Physiological sigh for acute spikes (Two inhales through the nose, one long exhale through the mouth; repeat 1 to 3 cycles as needed)
2Cyclic sighing practice (5 min/day, exhale-focused breathing)
3Anchor the basics that lower your baseline: morning sunlight, consistent sleep, and a short NSDR or meditation session (Daily; see the AM and sleep protocols for detail)

What to buy

Nutricost KSM-66 Ashwagandha ~$17

Thorne Theanine ~$24

Thorne Magnesium Bisglycinate ~$32

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Julie Smith, PhDClinical PsychologistAuthor, "Why Has Nobody Told Me This Before?" Julie Smith, PhD

ANXIETY

Square Breathing for Everyday Anxious Moments

1Use it for everyday stress, not as disorder treatment (Reserve this for ordinary anxious moments (before a meeting, after a stressful email); it is not a treatment for a diagnosed anxiety or panic disorder)
2Breathe in slowly through the nose (Inhale for a slow count of 4)
3Hold the breath gently (Hold for a count of 4, without straining)

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If breathing exercises or a meditation app have not touched your anxiety, that is common, not failure. These tools lower everyday stress and help regulate acute spikes, but they are not a treatment for a diagnosed anxiety, panic or trauma disorder. If anxiety is persistent, overwhelming, or stopping you from living your life, the next step is a licensed therapist or prescriber, not a stronger breathing routine. If you are in crisis, contact the 988 Suicide and Crisis Lifeline (US) or your local emergency services.

Strong evidence

CBT (Cognitive Behavioral Therapy) for anxiety disorders The best-studied psychotherapy for diagnosed anxiety and panic disorders, delivered by a trained therapist.

SSRIs or SNRIs, physician-prescribed First-line medication for generalized anxiety and panic disorder, started and monitored by a prescriber, not self-directed.

Exhale-focused breathing (the physiological sigh, cyclic sighing) A Stanford RCT found 5 minutes a day of cyclic sighing improved mood and lowered resting breathing rate more than an equivalent dose of mindfulness meditation over 28 days (Balban et al., Cell Reports Medicine, 2023). The physiological sigh, two inhales then one long exhale, works in seconds for an acute spike.

Regular aerobic exercise Consistently lowers anxiety and lifts mood across many trials; one of the most reliable non-drug levers.

Promising, evidence evolving

Mindfulness meditation Real evidence for lowering baseline stress and anxiety over time, though the same Stanford trial found daily breathwork outperformed an equivalent dose of meditation on several measures.

Consistent sleep, less caffeine and alcohol Short sleep amplifies anxiety and erodes stress tolerance; caffeine and alcohol both reliably raise baseline anxiety, so timing and dose matter.

CO2 tolerance and breath-control training A trainable breath-hold and exhale test that tracks stress and recovery over time; directional, not a validated clinical measure, but a useful trend tool and a skill-builder for calming an activated nervous system.

Time in nature Linked to lower stress and better mood; stacks well with exercise.

Magnesium or L-theanine Modest evidence, low risk. Food, sleep and breathing come first.

Emerging or mixed, covered honestly

The Wim Hof Method (breathwork plus cold exposure) for stress resilience Small studies show trained practitioners can influence their sympathetic nervous system and inflammatory response, but this is not controlled evidence that the method treats an anxiety disorder. Useful as a resilience practice, not a diagnosis-specific treatment.

Ashwagandha Some short-term evidence for stress markers, but real safety caveats: rare liver-injury reports, thyroid-hormone effects, and interactions with sedatives. Avoid in pregnancy or with liver or thyroid conditions.

Everyday anxiety and stress run on the same physiology: a sympathetic (fight-or-flight) nervous system that spikes fast and, without intervention, stays elevated. The tools with the best evidence work directly on that physiology, exhale-focused breathing, regular exercise, consistent sleep, less caffeine and alcohol, rather than trying to think your way calm. For a diagnosed anxiety disorder, panic disorder or PTSD, these are a complement to therapy and medication, never a replacement. Here is the honest map, ranked by evidence, so you always know your next move.

Andrew Huberman

Neuroscientist & Professor · Stanford

Tim Ferriss

Author & Investor · The Tim Ferriss Show

Andy Galpin

Exercise Physiologist · Parker University

Wim Hof

Breathwork & Cold Pioneer · The Wim Hof Method

Gary Brecka

Human Biologist · The Ultimate Human

Martin Picard

Mitochondrial Psychobiologist · Columbia University

Julie Smith, PhD

Clinical Psychologist · Author, "Why Has Nobody Told Me This Before?"

Compare experts on Anxiety & Stress

What is the fastest way to calm down when anxiety spikes right now?▾

The physiological sigh: two inhales through the nose (the second one short, to fully reinflate collapsed alveoli), then one long, slow exhale through the mouth. It works in seconds, needs no equipment, and can be repeated a few times.

Is breathwork actually backed by real evidence, or is it just trendy?▾

Yes, for exhale-focused breathing specifically. A Stanford randomized controlled trial (Balban et al., Cell Reports Medicine, 2023) found 5 minutes a day of cyclic sighing improved mood and lowered resting breathing rate over 28 days, outperforming an equal dose of mindfulness meditation.

Should I do meditation or breathing exercises for stress?▾

Both genuinely help. The Stanford trial found daily cyclic sighing edged out an equal dose of meditation on mood and resting breathing rate, but consistency, whichever one you will actually do, matters more than picking the theoretically superior option.

Is the Wim Hof Method proven to reduce anxiety?▾

Not specifically. Small studies show trained practitioners can influence their nervous system and immune response, but there is no controlled evidence that the method treats an anxiety disorder. Treat it as a resilience practice, not a targeted anxiety treatment.

When does everyday stress become something I should see a professional for?▾

When it is persistent, overwhelming, or interfering with your daily life or functioning, or if you have thoughts of self-harm. In the US, the 988 Suicide and Crisis Lifeline is available immediately; otherwise, a licensed therapist or your doctor is the next step.

Is ashwagandha safe to take for stress or anxiety?▾

There is some short-term evidence for stress markers, but real cautions apply: rare reports of liver injury, effects on thyroid hormone, and interactions with sedatives. Avoid it in pregnancy, and check with a doctor first if you have liver or thyroid conditions.

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