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 ...

As families return to school-term routines, sleep difficulties often resurface. For many parents, particularly those raising ...

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 ...

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 ...