Sleep is not a luxury — it’s a biological necessity. Yet millions of people sacrifice sleep daily without realizing how deeply it damages the body. Poor sleep doesn’t just make you tired; it silently disrupts your brain, metabolism, hormones, and immune system. Here are 11 hidden ways poor sleep is destroying your health. 1. Brain Fog and Poor Memory Lack of sleep reduces cognitive performance, focus, and memory retention. Your brain needs sleep to process and store information. 2. Weakened Immune System Poor sleep lowers immune defenses, making you more vulnerable to infections, colds, and slow recovery. 3. Weight Gain…