Your internal 24-hour clock — how light, timing, and daily habits either support it or work against it.
Circadian Rhythm
+2
Apr 14, 2026
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4 min read
Ordinary room lighting suppresses melatonin by more than 50%. The two-hour window before bed is when it matters most.
+4
Apr 7, 2026
3 min read
The number isn't the problem. Your sleep architecture is.
