New research reveals evening people experience circadian misalignment that may lead to cardiovascular problems, affecting ...

If you or someone in your household has narcolepsy, you know how much this condition can affect daily life. People with narcolepsy have fragmented nighttime sleep and extreme sleepiness during the day ...

Heart attack cases peak in the early morning due to hormone surges, blood pressure spikes, dehydration and increased clotting. Experts explain why winter mornings, sudden exertion and poor sleep ...