Andrew Huberman· PhD
You’ll want to get outside without sunglasses for about 10 minutes.
The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
You’ll want to get outside without sunglasses for about 10 minutes.
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On clear days do 5-10min.
I do, however, suggest viewing sunlight for 10-30min minimum each morning, sans sunglasses (glasses & contacts OK). Don’t stare at the sun, ever. Blink.
1 hour morning sun and 30m in evening and sun all day S much as possible.
low solar angle sunlight so sunlight Light low in the sky viewed for maybe 10 minutes a morning and again not forcing oneself to look at it and stare but blinking as needed is not going to cause extensive UV damage to the eyes