
Best Foods for Sleep: What to Eat, How Much and When
Tart cherry juice, kiwi, fatty fish and an early carb-based dinner have the best evidence for sleep. The doses, the timing and how small each study was.
Articles covering Andrew Huberman's science-backed protocols for sleep, focus, dopamine, and NSDR. Practical techniques from the Huberman Lab podcast.

Tart cherry juice, kiwi, fatty fish and an early carb-based dinner have the best evidence for sleep. The doses, the timing and how small each study was.

Withdrawal starts 12 to 24 hours after your last caffeine, peaks around day 2 and lasts 2 to 9 days. How to ease the headache and taper down.

Huberman's day as he described it in 2021, from morning light and delayed caffeine to NSDR after lunch and a cool bedroom, with each habit checked against the studies.

Cortisol should be high soon after waking and low by evening. How to lower it with timed light, easy exercise, time outdoors, sleep and ashwagandha, and what each study found.

The default mode network is what runs when your mind wanders. What it does, why a busy one goes with rumination and worry, and what quiets it, with the size of each study.

Seven focus techniques with timings and honest evidence: phone out of the room, one task at a time, sleep, attention drills, movement, timed blocks and rest.

Test yourself instead of rereading, space your reviews, rest quietly after studying and sleep 7 to 9 hours. The study behind each tip, sized honestly.

What heart rate variability measures, where the famous "good HRV" numbers come from, why your watch and ring disagree, and which habits move it.

Contrast therapy helps recovery after hard exercise more than resting does. Heart, mood and metabolism claims mostly come from sauna-only or cold-only studies.

The famous exercise and dopamine numbers come from mice and rats. What the human scans found, how much to move, and the habits Huberman says blunt the effect.

What Huberman recommends for morning, afternoon, evening and night light, with minutes by weather, and which parts the research backs.

A cold plunge cools all of you and has the research; a cold shower is free and easy to keep up. What each was shown to do, and how to start.

Lifting for muscle? Huberman's advice is to wait 6-8 hours before a cold plunge. What the trials tested, why cold slows growth, and when plunging straight away is fine.

Most people plunge at 50-59F (10-15C). Start near 60F, work down over four weeks, keep sessions to a few minutes, and stay above 40F.

A long-exhale sigh, slow breathing and cold water on the face can slow a racing heart in minutes. What each does, and when to get help instead.

Five breathing techniques for sleep with exact steps, a way to pick one by problem, and an honest look at what the sleep studies found.

Cyclic hyperventilation is 30 deep breaths and a short empty-lung hold, repeated three times. What it does, how to do it, and why water and driving are off-limits.

Two breaths in, one long breath out. How to do the physiological sigh, why your body sighs on its own, and what a month-long Stanford trial did and didn't show.

Huberman's supplement list with doses checked against his own episodes: fish oil, creatine, the sleep stack, tongkat ali and fadogia, and the cautions he gives.

Sleep anxiety is a loop: lost sleep makes the brain more reactive, and worry about sleep keeps you awake. Seven methods that break it, and what the evidence shows.

A timed 5-step NSDR protocol for focus, the three best times to use it, and an honest look at what the NSDR trials found for attention.

Caffeine's half-life averages about 4 hours, with a range of 2 to 8. How much of a noon coffee is left at bedtime, what stretches it, and when to stop.

Apigenin is usually taken as 50 mg before bed. No trial has tested it alone, the chamomile trials are mixed, and a 2026 blend trial found no sleep benefit.

Most adults sleep best around 65°F (18°C), give or take a few degrees. Why a cool room helps, a week-long test to find your own number, and five ways to get there.

Glycine for sleep is taken as 3 g before bed. Small trials found better-rated sleep and faster sleep onset, the mechanism is from rats, and cycling is Huberman's habit.

Two small, industry-funded trials found magnesium threonate helped some sleep measures and not others. The 145 mg dose, timing, side effects and how it compares with glycinate.

L-theanine may help you settle into sleep without sedation. Trial doses and timing, five ways to use it, who should skip it, and who paid for the studies.

Seven sleep habits ranked by evidence, from a fixed wake time and morning light to a cool, dark bedroom and a 9-hour caffeine cutoff, plus a morning-to-night checklist.

A sleep schedule that runs late is fixed from the morning end: a fixed wake time, outdoor light, dim evenings and 15 to 30 minute shifts, with the evidence behind each step.

What the sympathetic, parasympathetic and enteric branches each do, why the vagus is mostly a sensory nerve, and which calming tools have evidence.

Yoga nidra is guided deep relaxation, usually done lying down while you stay awake. Its history, its 8 stages, and what the research shows.

The rest-and-digest branch of your nervous system, mostly carried by the vagus nerve. How it works, how to read it with HRV, and five ways to activate it, with the evidence for each.

Get up on time, get daylight, stop coffee by midday, nap 10 to 20 minutes early and keep your usual bedtime. What the studies on a bad night show, and where they stop.

Hard thinking changed brain chemistry in one study, and some recovery methods have better evidence than others. Seven to try, plus when fatigue is really burnout.

Nap grogginess is sleep inertia. Sleep 10 to 20 minutes, nap early in the afternoon, try a caffeine nap, and know when resting awake is the better call.

Your body clock and sleep pressure drive the afternoon dip, and a heavy lunch makes it worse. Seven ways to soften it, from daylight to a short nap.

Five ways to rest while awake, from a 2-minute breathing reset to a 10-minute NSDR session, with what the studies found and which one fits your situation.

A long-exhale sigh and cold water on your face each take under a minute. Seven ways to calm down, ranked by time, with what each study found and where it stops.

Quiet rest straight after studying gives a small memory boost that still shows a week later. How to use NSDR for it, and what Huberman now says about timing.

Huberman's NSDR routine in his own words: 10 to 30 minutes daily, longer after a bad night, linked to each episode, with the studies he cites checked.

Non-sleep deep rest is guided rest done lying down and awake. What it is, how it differs from a nap or yoga nidra, how to start, and what studies show.

Seven ways to relax, from a 5-minute breathing drill to a walk outside, with what the research shows for each and what to do when relaxing makes you more anxious.

Rain sounds can help you fall asleep by masking noise, but sleep research on rain itself is close to nil. What the evidence shows and how to use them well.

Timed pink-noise bursts boosted deep sleep in small lab studies. An all-night track cut REM in 2026. What it does for sleep and focus, and how to use it safely.

The NSDR protocol in six steps, then which session fits your goal: an afternoon slump, stress, skill practice, a bad night or bedtime.

Light after your body's temperature low moves your clock earlier; light before it moves it later. How to time light, meals and melatonin for east and west trips.

Seven changes tied to more deep sleep in studies, how big the effects are where they were measured, and two popular fixes that work against you.

Huberman's seven dopamine tools, checked against the studies. Sleep, daylight and exercise come first; the cold, caffeine and NSDR numbers mean less than they sound.

A warm bath 1-2 hours before bed, a cooler room, dim lights and an earlier caffeine cutoff. Huberman's sleep advice, checked against the research.

Every dose in Huberman's sleep cocktail, checked against his own newsletter and podcast, with the evidence for each ingredient and who should skip it.

Huberman's two fixed fasting rules, where the 8-hour window came from, what breaks a fast, and what human trials since 2021 found.

Four times to do NSDR, matched to stress, memory, the afternoon dip and sleep, with session lengths and what the yoga nidra and rest studies show.

The famous 65% dopamine figure comes from one 2002 yoga nidra study of 8 men. What it found, what the NSDR trials show, and what is still unproven.