Sleep deprivation should never be underestimated. A Michigan State University study found that when sleep deprived people perform multiple-step tasks, the risk of mistakes doubles compared with those who have slept adequately.

Teenagers need at least 9 hours sleep per night in order to deal with their rapid growth, studies and social pressures. We give you examples of sleep deprivation symptoms and offer some ways to implement a nightly wind-down ritual.

Did you know that even just four nights of poor sleep can wreak havoc on the way you eat and the way your body stores fat?