Moonlight and Candlelight Don’t Reset Circadian Clock

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Andrew Huberman's video 'Essentials: Using Science to Optimize Sleep, Learning & Metabolism'

Quotes From Source

Moonlight, candlelight, and even a fireplace do not reset your circadian clock.

Story of claim

Andrew Huberman explains that moonlight and candlelight don't trigger brain signals for daytime, thus not resetting the circadian clock. Viewing low light sources at night is safe for sleep.

  • Goal: To educate viewers that low light sources like moonlight and candlelight do not influence the circadian clock, aiding in better sleep management.
  • Proof: Moonlight and candlelight do not activate melanopsin ganglion cells, preventing brain triggers for daytime signals.
  • Nuances:
    • Avoid bright lights between 10:00 PM and 4:00 AM for optimal circadian health
    • Melanopsin ganglion cells adjust sensitivity throughout the day
  • Impact on Life: Understanding light sources' impact on circadian rhythms can lead to improved sleep quality and stability in sleep patterns.

Investments

  • Price: $0 for natural moonlight or candlelight
  • Time: Instant, no need to adjust anything
  • Effort: Minimal, involves avoiding artificial bright lights at night

Risks

No risks associated with exposure to moonlight or candlelight at night.

Get Started 🚀

  • Use moonlight or candlelight instead of artificial lights at night to preserve circadian rhythm
  • Ensure your room is free from bright artificial light sources at night

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Reference Video