Sleep is not just a passive activity; it’s a complex and dynamic process vital for our physical health, emotional well-being, and cognitive performance. Understanding the science behind sleep can empower us to take control of our nightly rest and improve our overall quality of life. The Stages of Sleep Sleep is divided into two main types: REM (Rapid Eye Movement) sleep and non-REM sleep, which has three distinct stages. Each stage has specific characteristics and functions: NREM Stage 1: This is the lightest stage of sleep, often characterized by the slowing down of both the body and brain activity. It’s a transitional phase that lasts for several minutes. NREM Stage 2: Body temperature drops, and heart rate begins to slow as the body prepares for deep sleep. This stage accounts for the largest part of our sleep cycle. NREM Stage 3: Also known as deep sleep or slow-wave sleep, this stage is crucial for physical recovery, immune function, and growth hormone rele...
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