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

Melatonin supplements, widely used to tackle insomnia and irregular sleep cycles, may not be as harmless as many believe, with new research raising concerns over prolonged use. Melatonin is a ...

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

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

Move over, melatonin.

Sleep problems are increasingly common among children and adolescents, affecting emotional regulation, cognitive development, and healthy conditions. As families are seeking quick and accessible ...

Background: In many mammals, the duration of the nocturnal melatonin elevation regulates seasonal changes in reproductive hormones such as luteinizing hormone (LH). Melatonin's effects on human ...

The 20 participants completing the study had a mean age of 59 years (range 51–69). As expected due to random group assignment, baseline values of urinary LH excretion among the 3 groups were not ...