Adolescents who sleep longer and better than their peers perform better in cognitive tests, according to new research ...

A large-scale study has found that adolescents who go to bed earlier and get slightly more sleep show better brain function ...

Adolescents who sleep for longer -- and from an earlier bedtime -- than their peers tend to have improved brain function and perform better at cognitive tests, researchers have shown. But the study of ...

ABC News' Dr. Tara Narula breaks down a new study on how much sleep teens really need and why sleep training isn't just for babies anymore.

Variations in sleep timing were associated with cognitive performance including delayed verbal memory and worse processing speed.

There are a number of reasons why alcohol should be avoided a certain time before heading to bed, experts have said, and it could be stopping you getting a good night's sleep ...