Less optimal health from oxidative stress
visible light: 39%
1 candle (1 lumen), over 1 meter distance to cover 1 square meter = 1 lux
50 living room
1000 overcast day
32,000+ direct sunlight
21:00 hours: melatonin secretion starts
07:30 hours: melatonin stops
Dysregulation of circadian rhythm causes problems in
rodent & humans
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