Chapter
Understanding Light and Circadian Rhythms
17:24 - 28:55 (11:31)
This episode discusses the impact of light on circadian rhythms and how being aware of your exposure to light can improve your sleep and overall health.
Clips
The host challenges listeners to send him a peer-reviewed paper that shows light delivered to any area other than the eyes of humans can regulate circadian rhythms.
17:24 - 20:19 (02:55)
Summary
The host challenges listeners to send him a peer-reviewed paper that shows light delivered to any area other than the eyes of humans can regulate circadian rhythms. Although there are commercial products available which claim to do so, they may instead stimulate the release of stress hormones.
ChapterUnderstanding Light and Circadian Rhythms
EpisodeUsing Science to Optimize Sleep, Learning & Metabolism
PodcastHuberman Lab
The speaker recommends first exploring free and behavioral tools to improve biological rhythm and get dialed in before resorting to external methods.
20:19 - 22:50 (02:31)
Summary
The speaker recommends first exploring free and behavioral tools to improve biological rhythm and get dialed in before resorting to external methods. One should not assume that the length of time they spend looking at sunlight is directly correlated to the lux levels they experience.
ChapterUnderstanding Light and Circadian Rhythms
EpisodeUsing Science to Optimize Sleep, Learning & Metabolism
PodcastHuberman Lab
This podcast discusses the concept of nearsightedness and the importance of wearing the right prescription lenses to properly focus light onto your neural retina to effectively communicate with your brain.
22:50 - 24:31 (01:41)
Summary
This podcast discusses the concept of nearsightedness and the importance of wearing the right prescription lenses to properly focus light onto your neural retina to effectively communicate with your brain. The speaker also provides recommendations on light viewing and lifestyle factors that can positively impact vision.
ChapterUnderstanding Light and Circadian Rhythms
EpisodeUsing Science to Optimize Sleep, Learning & Metabolism
PodcastHuberman Lab
The circadian dead zone is the period in the day when your brain is not expecting any wake-up signals, and hence it doesn't matter if you stay indoors or get artificial light.
24:31 - 28:55 (04:23)
Summary
The circadian dead zone is the period in the day when your brain is not expecting any wake-up signals, and hence it doesn't matter if you stay indoors or get artificial light. It is the period in the mid-morning when the sun is overhead, but not bright enough to signal a morning wake-up routine.