Sleep is not just a state of rest — it is a vital biological function essential for human survival, similar to eating, drinking, and breathing. While it may seem like an inactive part of our daily life, sleep plays an active and critical role in maintaining overall physical and mental health. In an increasingly fast-paced world, understanding the importance of sleep has become more crucial than ever. 1. Physical Restoration During sleep, the body undergoes essential repair and maintenance processes. Tissues grow and regenerate, muscles recover from stress or injury, and the immune system strengthens. Growth hormone, which plays a key role in these processes, is secreted mainly during deep sleep stages. Without adequate sleep, the body struggles to heal, increasing the risk of chronic illnesses such as heart disease, diabetes, and obesity. 2. Brain Function and Memory Sleep profoundly impacts brain health. While we sleep, the brain processes and consolidates memories, clears ...