WASTED on Instagram: "😴 Running on no sleep, or pulling an all-nighter, pushes the human body and mind to their limits, often with immediate and noticeable effects. Sleep deprivation disrupts cognitive functions, impairing focus, memory, and decision-making, while slowing reaction times to levels comparable to alcohol intoxication. Physically, the body struggles to regulate stress hormones like cortisol, leading to heightened irritability, a weakened immune response, and even temporary changes