Melatonin

Melatonin does both — but the effects are unequal and depend on timing, dose, and your specific sleep problem. Here's what the research actually shows.

What time of day is best to take melatonin? Research shows timing matters more than dose. Learn the optimal window for sleep, shift work, jet lag, and more. 

Discover what depletes melatonin in the body — from blue light and beta-blockers to alcohol and aging — and how to protect your sleep hormone naturally.

Wondering how to check your melatonin levels? Learn which tests exist, what they measure, what results mean, and when testing is actually worth it.

Trouble sleeping, low mood, waking at 3am? These 8 signs may point to low melatonin or circadian disruption. Evidence-based guide + what to do about it.

Melatonin doesn't just affect the brain. Discover which organs melatonin targets — from the pineal gland to the gut, eyes, and immune system — and what that means for your sleep and health.

Melatonin works for some people—but not everyone. Explore the honest science behind when melatonin is the right tool, and when CBT-I, magnesium, or sleep hygiene will serve you better.

Learn how to increase melatonin naturally with science-backed strategies — light management, melatonin-rich foods, magnesium, exercise, and more.

Learn the critical window for melatonin timing to avoid grogginess. Understand how late-day dosing disrupts sleep quality and discover the optimal timing relative to your bedtime. 

Science-backed melatonin timing, dosing, and behavioral strategies to fall asleep faster. Learn the 3-hour protocol that actually works.

Clinical research on melatonin and blood pressure. Learn how melatonin affects BP in healthy people vs. hypertension, dosing effects, and timing insights.