Summary:
Circadian disruption leads to “worse than drunk” performance, according to the Navy1
Circadian disruption is associated with all different mood disorders2
The circadian rhythm ties our biology to the seasons3
Chronotype varies on a population-basis based on the time of sunrise4
Using artificial light unnaturally condenses sleep; polyphasic sleep is the natural sleep pattern for varying lighting conditions5
Polyphasic sleep, spending longer time in bed and darkness, may be more realistic for new mothers to aspire to
As much as we celebrate “night owls”, as a culture, darkness is associated with bad, evil, etc.
LEDs have made evening brightness an even bigger problem for sleep and circadian rhythms6
Bright lights stimulate cortisol release to make us more alert by activating every system in the body7
The broad effects of cortisol can affect different people differently8
Activity: LIGHTING INVENTORY
Different kinds of lightbulbs have different effects on the circadian rhythm
Blue- and green- enric…
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