Medically reviewed by Sohaib Imtiaz, MD Key Takeaways Melatonin should be taken 1 to 2 hours before bedtime to help align ...

In a small study of healthy adults aged 55 and older, 5 mg of melatonin increased total sleep time compared to a placebo. "Sleep deficiency becomes more common as people age, and, given the drawbacks ...

Melatonin, alongside other trusty over-the-counter sleep aids, is supposed to help you when you're having trouble falling asleep. Usually, melatonin supplements are designed to stop you from tossing ...

A major study links prolonged melatonin use to a significantly higher risk of heart failure, hospitalisation, and death ...

A melatonin overdose can cause daytime sleepiness and inability to concentrate. JGI/Jamie Grill/Getty Images You can overdose on melatonin which causes daytime sleepiness, dizziness, and headaches.

It can acutely raise blood glucose levels by suppressing insulin secretion, but in the long term, it may confer metabolic benefits.

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Here’s our process. Melatonin is usually safe for children in the short ...

A large-scale study presented at the American Heart Association's (AHA) Scientific Sessions 2025 revealed a significant ...

Add Yahoo as a preferred source to see more of our stories on Google. Bottle with melatonin pills or supplements, purple background Falling asleep and staying asleep are common struggles. It can be ...

Melatonin is one of the most used supplements in the United States. Among older adults, its use has tripled in the last two decades. But there is no consensus on the right dosage of melatonin, and ...