How Does Blue Light & Other Light Affect Your Sleep - Dr. Andrew Huberman
Andrew Huberman is discussing a critical period of 3 hours in the 24-hour cycle, typically the late evening or early bedtime hours, during which a person should optimize their sleep by avoiding bright artificial lights of any color and engaging in sleep-promoting behaviors. Huberman mentions blue-blocker lenses that can help with headaches and eye strain, but even with those lenses, bright lights will still activate the same mechanisms that sunlight activates in the morning. THe also notes that while bright light is needed in the morning to wake up, bright light during the evening hours is detrimental to sleep.
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