More sleep means more energy for exercise, right? Not according to research tracking nearly 71,000 people across three years. The study reveals a surprising pattern. The relationship between sleep and ...

“Evening exercise – particularly involving high levels of cardiovascular strain – may disrupt subsequent sleep, resting heart rate, and heart rate variability, thereby impairing a critical stage of ...

Studies have shown that physical activity and sleep influence each other over 24 hours, suggesting a need to optimize both to reduce the long-term risks of morbidity and mortality. A large, ...

EDITOR’S NOTE: Before beginning any new exercise program, consult your doctor. Stop immediately if you experience pain. The health benefits of a good night’s sleep have long been touted by researchers ...

You do a lot to power your workouts -- from drinking lots of water beforehand to popping in good headphones so the beat can keep you pumped up. You know that what you do before your workout matters.

Getting the balance right between sleep and exercise could play a crucial role in protecting against illness and early death, scientists say. New research suggests there is a 'sweet spot' where the ...

Editor’s Note: Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. However, the amount of sleep you get may be just as important — at ...