Morning Sunlight Exposure (Huberman Protocol)

What is Morning Sunlight Exposure (Huberman Protocol)?

Get 2-10 minutes of direct sunlight in your eyes within 30 minutes of waking. This triggers a cortisol pulse that sets your circadian clock, boosts alertness, and programs your body to produce melatonin 14-16 hours later. Huberman calls this 'the single most important thing you can do each day.'

Is there evidence for it?

How do you do Morning Sunlight Exposure (Huberman Protocol)?

1. 1.Within 30 minutes of waking: go outside and face the sun (don't stare directly at the sun, just face its general direction). No sunglasses. Regular glasses/contacts are fine
2. 2.Duration: 2-5 minutes on a sunny day, 10-15 minutes on a cloudy day, 20-30 minutes on a very overcast day. The light intensity matters — indoor light is 50-100x dimmer than outdoor light, even on cloudy days
3. 3.Don't look through a window — glass blocks 50%+ of the UV light that triggers the melanopsin cells in your eyes. You MUST be outside or at least have the window open
4. 4.This triggers a cortisol pulse (the healthy, wake-up kind) and starts a 14-16 hour countdown to melatonin production. Morning sunlight at 7 AM = melatonin rise at 9-11 PM. Your body literally times sleep from this signal
5. 5.Combine with a short walk for double benefit. Morning walk + sunlight = cortisol reset + light exercise + vitamin D + fresh air. The most efficient health habit that exists

How long does it take?

2-10 minutes each morning.

Is it hard to start?

easy.

This is one entry from the library Shift matches against. It is general information, not advice about you, and nothing on this page came from anyone's conversation.