A strong relationship exists between sleep and brain health. Long-term sleep disruptions can increase the risk of ...

During sleep, the body goes through multiple sleep cycles. Each cycle consists of four stages: three stages of non-rapid eye movement (non-REM) sleep and one stage of rapid eye movement (REM) sleep. A ...

We have all sacrificed a night's sleep at some point in our lives, perhaps to study for an exam or while taking a long-haul flight. But just one night without sleep is actually enough to rewire our ...

The link between poor sleep quality and cardiovascular risk is already well documented. However, most studies only consider one or two aspects of sleep (for example, sleep duration or sleep apnea), ...

Sleep bradycardia is a slow heart rate during sleep. It may be a natural, healthy sleep response or a sign of an underlying health issue. Most healthy adults have a heart rate between 60 and 100 beats ...