It’s no secret that drinking coffee shortly before bedtime disrupts sleep, but a new study suggests that caffeine can actually affect our body’s internal clock, pushing back our natural rhythms by nearly an hour.
Traveling this holiday season? Here's how to prepare your body for the crushing exhaustion that comes from switching time zones.
Jetlag need never again be a problem, according to two scientists from Boston's Brigham and Women's Hospital. All you need is an understanding of your circadian cycle, a strong light, and plenty of spare time.