Daily Fact: Deep sleep is when the brain clears metabolic waste most efficiently.Daily Fact: Iron absorbs far better with vitamin C and far worse with tea or coffee.Daily Fact: Creatine is stored in muscle and in the brain, not just in muscle.Daily Fact: Curcumin absorption jumps sharply when taken with black pepper or fat.Daily Fact: Deep sleep is when the brain clears metabolic waste most efficiently.Daily Fact: Iron absorbs far better with vitamin C and far worse with tea or coffee.Daily Fact: Creatine is stored in muscle and in the brain, not just in muscle.Daily Fact: Curcumin absorption jumps sharply when taken with black pepper or fat.
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Last Updated: October 9, 2026 · Medically reviewed · Cross-checked with 6 AI models

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Daily FactFriday, October 9, 2026

Blue Light & Sleep: keeping melatonin on schedule

Blue Light & Sleep — keeping melatonin on schedule. Evening exposure to blue light from phones and laptops can delay the melatonin rise needed for sleep. Melatonin signals the brain that it is nighttime; suppressing it pushes the body clock later. Reducing screen use one hour before bed or enabling night mode can measurably improve sleep onset. As health upgrades go, the risk here is close to zero. It pushes back on the low-grade inflammation that speeds up ageing. Spend two minutes each weekend reviewing what worked and what did not. For most adults, dim lights and stop screens 60 minutes before your target bedtime. Be patient — biology moves slower than motivation does.

SleepUpdated every morning at 6 AM ET · 2026-10-09

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