Anyone who has experienced a mid-afternoon energy slump or suffered from jetlag has felt the effects of their body’s circadian rhythm. This internal clock helps regulate many of our physiological processes, including sleep, metabolism, and even how the brain functions.

Dr. Breus joins Dr. Roizen to share his rest-o-lutions, which are related to the top resolutions people generally make.

Based on when you sleep, you can figure out the best time to have sex, eat a cheeseburger, run a mile or even ask your boss for a raise.

Learn why some people need less than eight hours of sleep and when to eat your biggest meal for the best chance at losing extra weight.

When it comes to health, there is one criminally overlooked element: sleep.

A lack of exercise can make you feel lethargic, fatigued, and weary. As it progresses, along with it can come depression and decreased motivation.

As research into the benefits of cannabis continues, and stigmas around the drug fall to the wayside, there are so many issues that can be eased by this plant. Sleep difficulties being one of them.

Are you so tired you need to nap during the day? you wake up with a terrible headache? You're a loud snorer? You might be suffering from sleep apnea.

Improve your health by supporting your human circadian rhythms.

What causes long face syndrome?