Syncing your circadian rhythm to a natural light-dark cycle could improve your health and well-being. nambitomo/iStock via Getty Images Plus Anyone who has suffered from jet lag or struggled after ...

Research details the importance of maintaining the body's rhythm for optimal health so NBC News medical contributor Dr. John ...

Discover how your body’s internal clock influences your weight and overall well-being — and how to get it back into sync.

If you've traveled across multiple time zones, you’ve likely felt the impact of jet lag, but why does it seem more intense ...

If your mental health has been declining, your sleep-wake cycle may be to blame, according to a new review of literature. Taylor Leamey wrote about all things wellness for CNET, specializing in mental ...

Circadian rhythms are changes in the body, brain, and behavior that occur on a 24-hour cycle. Circadian rhythms have an ...

Neurologist Dr. Sudhir Kumar reveals how work schedules silently impact long-term health. Day shifts align best with our body ...

New research suggests that the circadian system in people with obstructive sleep apnea may disrupt blood vessel function ...

For some people, waking up early is a breeze. For others, it’s all about that night owl life. But what happens when you need to significantly shift around your sleep schedule? Is it even possible to ...

Stress is not simply a response to acute stressful episodes. It occurs in the brain where a natural rhythmic pattern ...

Post-holiday fatigue can be overcome with simple morning routines. Sunlight exposure, avoiding screens, light exercise, a ...