brain waves

Brain waves are electrical impulses in the brain that reflect its activity. They are categorized by their frequency, measured in hertz (Hz), into five main types: delta (0.5-4 Hz), theta (4-8 Hz), alpha (8-12 Hz), beta (12-30 Hz), and gamma (30 Hz and above). Each type corresponds to different mental states. For instance, delta waves are prominent during deep sleep, while beta waves are associated with alertness and active thinking. Understanding brain waves helps researchers study consciousness, sleep, and various mental health conditions, providing insights into how our brains function throughout different activities and states.