The first three stages of sleep are characterised by three types of brainwaves: alpha waves, theta waves and delta waves. The former are typically recorded when we’re in the process of falling ...

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.

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

Say Goodnight to Sleepless Nights - Why Sonopeace's Natural Frequencies Revolutionize Rest! United States, February 27, 2025 ...

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 ...

Delta waves, patterns of slow, synchronized brain activity that occur during deep sleep, have long been considered “periods of silence,” in which neurons in the cortex stop firing. But these intervals ...

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

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.