Caffeine Cutoff Times: When to Stop Drinking Coffee for Good Sleep
Caffeine's half-life means a 3pm coffee is still 50% active at 9pm. Here's the science.
Read guide →Science-backed guides on the foods, timing, and nutrients that support deeper, more restorative sleep — without medication.
Start with magnesium →
Magnesium deficiency is quietly common — and it's one of the most underappreciated reasons people struggle to fall and stay asleep. Here's what the research shows, and which foods deliver the most usable magnesium.
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Caffeine's half-life means a 3pm coffee is still 50% active at 9pm. Here's the science.
Read guide →
Eating close to bedtime raises core body temperature and delays sleep onset. The evidence and practical guidelines.
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Tryptophan converts to serotonin and then melatonin — but the story is more nuanced than eating turkey and sleeping well.
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A handful of foods contain melatonin directly or support its production. Two stand out in clinical trials.
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Up to 60% of adults don't meet magnesium RDA through diet. Here's how to fix that without supplements.
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