"Deep sleep builds your immune system, and REM sleep regulates and fine-tunes it," says Darwall-Smith agrees. During deep ...

According to recent studies, keeping your phone's internet connection switched off could bag you an extra 17 minutes of sleep a night and boost your brain health. Thanks to the glymphatic system ...

In 1924 German psychiatrist Hans Berger invented the electroencephalograph, which records electrical activity in the brain, and the study of sleep shifted from philosophy to science. It’s only ...