Jet lag is the unfortunate price many travellers pay for crossing time zones, whether it's arriving wide awake in Tokyo at ...

Northwestern Medicine investigators have discovered how disruptions in the circadian rhythm in our muscles combined with poor ...

For a good night of sleep, consider getting your circadian rhythm back in sync with the sun. Here’s how to do it.

A randomized controlled trial shows that lithium treatment in bipolar disorder patients reduces daytime activity, advances ...

While melatonin supplements are popular, it's not always clear how much melatonin you should take. Here's what doctors ...