Light and Circadian Clocks
Safety should always come first when it comes to light exposure; wearing sunglasses or prescription lenses is essential for those who need them. Interestingly, even individuals with low vision or blindness can still regulate their circadian clocks through specialized neurons that respond to light wavelengths, regardless of their ability to perceive light. This highlights the importance of light in maintaining our internal rhythms, even when visibility is compromised.In this clip
From this podcast
Huberman Lab
Master Your Sleep & Be More Alert When Awake | Huberman Lab Podcast #2
Related Questions
From a standpoint of ruthless neurobiological efficiency for setting the circadian clock, which is the lesser of two evils regarding eyewear during morning light exposure: blue-light blocking glasses or high-quality sunglasses? Does wearing any kind of filtering eyewear during the morning viewing protocol completely negate the benefits by filtering out the specific blue/yellow wavelengths needed to activate the melanopsin retinal ganglion cells, or is the sheer intensity (lux) of outdoor light sufficient to overcome the filter to some degree? Is it a binary 'works/doesn't work' situation, or is there a gradient of effectiveness?
Why does wearing sunglasses affect circadian rhythm?
How do sunglasses affect circadian rhythms?