Methamphetamine use disorder (MUD) was associated with significantly lower levels of serum melatonin and disrupted circadian patterns compared with not having MUD, a new study showed. Melatonin levels ...

Some studies point to melatonin use as beneficial to heart health, while others say the opposite. Here’s how to make sense of the complex research. Melatonin may be one of America’s most trusted sleep ...

Melatonin is wildly popular—and wildly misunderstood. Here’s why scientists say taking this supplement doesn’t necessarily translate to better sleep. Melatonin is a widely used supplement, touted for ...

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

Long-term melatonin use for sleep problems may come with unexpected heart dangers. Researchers found that chronic users were almost twice as likely to die and 3.5 times more likely to be hospitalized ...