Waking up in the middle of the night is normal. Most of us experience mini-awakenings without even noticing them—up to 20...

While lower energy in the afternoon is a natural part of our circadian rhythm, taking a nap in the middle of the day is not...

New studies coming out of our collaborators at Johns Hopkins Medicine determined that brain shrinkage is accelerated in...

Last Sunday I went to bed early, exhausted from one of the most enjoyable weekends I could remember. It included a long bike...