There is much we don?t yet understand about the causes and processes that underlie sleep disorders, which is why we need a boost in research.

Although sleep research and care for individuals with sleep disorders have expanded over the past several years, we currently don?t have the capacity to adequately diagnose and treat all who suffer from these problems.

Alcohol also causes dehydration, and dehydration can cause headaches and nausea. Alcohol also disturbs sleep. So even though it feels like you slept 12 hours, you probably didn't get REM sleep, so you won't feel rested the next day.

This may be the solution to a 3,000-year-old medical mystery of what causes colic.

This may be the solution to a 3,000-year-old medical mystery of what causes colic. There is a lot of advice on baby feeding, but almost nothing on how to help crying babies.

Having played an angel for so long, you can imagine that I've been asked to endorse any number of causes over the years. Obviously I have to limit my participation with any charity, so I decided to really concentrate on my love of children.