Eight hours isn’t necessarily the magic number for sleep. Your age, body clock and individual needs all matter.

Another study published in Nature used brain and body scans, along with molecular measures, to examine how sleep relates to ...

A new study might have found that optimal amount of sleep to slow aging.

If there’s one thing to get right in life, it’s sleep. And it turns out most Australians are failing to count the right amount of sheep each night. Everyone’s lucky number should be seven, as that’s ...

Sleep is critical to peak health. Some of the adverse health effects attributed to too little sleep include obesity, diabetes, hypertension, heart disease, stroke, depression, impaired immune function ...

The idea dates back to the mid-19th century when the notion of eight hours of work, eight for recreation and eight for sleep ...

Your optimal amount of sleep may depend on where you live, new University of British Columbia research has found. An analysis of sleep data and health outcomes for nearly 5,000 people in 20 countries ...

If you’re over 65, you might have noticed that, despite keeping the same sleep habits, you've started to feel more tired. But do you need more sleep than younger adults or are your sleep patterns just ...

Add Yahoo as a preferred source to see more of our stories on Google. It’s no secret that sleep is incredibly important and for so many of us who struggle to sleep it can often feel that no amount of ...

Why? Other research shows that getting only six hours of sleep makes any task that requires focus, deep thinking, or problem-solving — in short, anything important — a lot harder. The same is true for ...