Sleep Stages Explained

The brain undergoes distinct cycles during sleep, alternating between non-REM and REM stages. Non-REM sleep, which makes up 80% of the night, features slow heart rates and deep brain activity, while REM sleep is characterized by high brain activity and vivid dreaming. Everyone dreams, although some may struggle to recall their dreams, leading to the misconception that they don’t dream at all. The intricate collaboration of various brain areas creates the complex experience we recognize as sleep.