The study saw 435 adults asked seven key questions about their bedtime usage of smartphones and snoozing habits ...

Stage 2: Slightly deeper sleep. Your muscles relax; your heart rate and breathing slow; your body temperature drops. Stage 3: Deep or “delta-wave” sleep. Heart rate and blood pressure drop.

Theta waves (4-7 Hz) are common in the lighter stages of sleep or the transition from waking to sleeping. Delta waves (0.5-4 Hz) signify a state of deep sleep. A binaural beat with a frequency ...

A study led by Saudi Arabia's King Saud University delved into the influence of smartphone usage on our sleep quality ...

This is also where we discovered the importance of slow-wave sleep (SWS), characterized by relatively slow delta waves. It’s the third stage in non-rapid eye movement (NREM) sleep, characterized ...

"When we wake up, our brain transitions from the deeper sleep brain waves (like delta and theta waves) through alpha waves and finally to beta waves," she continued. "This transition makes us more ...

Ever feel mentally drained but can’t nap or don’t have time for one? There’s a way to recharge your brain without sleeping.