during NREM THE BRAI IS IDLE OR NOT

Answer 1

During NREM (non-rapid eye movement) sleep, the brain is not idle. In fact, NREM sleep is important for various brain activities such as memory consolidation, learning, and restoration. Although the brain is less active during NREM sleep compared to wakefulness or REM (rapid eye movement) sleep, it is still engaged in various internal processes. These processes include regulating body temperature, releasing growth hormones, repairing tissues, and decreasing the brain's overall metabolic rate. Thus, even though NREM sleep may involve slower brain waves and reduced conscious awareness, it plays a crucial role in maintaining overall brain health and functionality.