Most people assume that the more exhausted they feel, the faster they’ll drift off to sleep. It seems like a simple equation.

Each night, our brains cycle through hours of activity that remain surprisingly mysterious. Even though much of that time is spent dreaming, scientists still don't fully understand what the brain is ...

The inability to fall asleep despite intense physical tiredness occurs because falling asleep depends on your circadian ...

Neuroscientists studying the shifts between sleep and awareness are finding many liminal states, which could help explain the disorders that can result when sleep transitions go wrong Yasemin ...

How the function of neurotransmitters changes during sleep In a dream, you are walking through an unfamiliar city. People are ...