Blue Light
Amber vs Clear Blue Light Glasses: Which Helps Sleep?
One trial tested both: amber lenses added 30 minutes of sleep. The clear pair was the placebo. Physics explains why.
How Much Does Blue Light Suppress Melatonin? Lab Numbers
99% of adults, 90 lost minutes, 55% suppression: the measured lab numbers behind blue light and melatonin.
Morning Sunlight and the Cortisol Awakening Response
The 30-minute morning window that times tonight's melatonin. The mechanism, the window myth, and the exact protocol.
Red Light Therapy for Sore Muscles: What Athletes Know
Photobiomodulation has been in pro recovery rooms since 2008. The protocol, the dose, and why amateurs shouldn't wait.