Sleep

Study shows almost a third of young people experience sleep problems - but older girls' mental health is suffering the most.

The devices are "dominating" the lives of young people, says research.

A lack of rest leaves youngsters unable to focus at school, a World Health Organization study says.

Fat lost from the tongue was the reason for improvements in a sleep apnoea weight loss study.

Contrary to popular belief, the blue light from screens might not be that bad, researchers say.

A bad dream during the night may help you to control fear when awake, say researchers.

The US government has issued a directive banning sleeping at work. But sleep experts say they should reconsider.

Teenagers spending more than three hours on their phones are more likely to sleep badly, a study suggests.

Evening doses gives more protection against heart attacks and strokes, a study suggests.