In today's fast-paced world, sleep can often be elusive. With busy schedules, stressful lives, and the constant pull of digital distractions, many people struggle to get enough quality rest. However, one of the most powerful yet often overlooked remedies for improving sleep quality is physical activity. Whether you're someone who exercises regularly or you're just starting to think about incorporating movement into your routine, understanding the science behind how physical activity influences sleep can help you make more informed decisions about your health. 1. The Science of Sleep: What Happens When We Sleep Sleep happens in cycles of about 90 minutes, moving through light sleep, deep sleep, and REM (rapid eye movement) sleep. Deep sleep is essential for muscle repair, immune strength, and physical recovery, while REM sleep supports memory, learning, and emotional balance. Disruptions in these stages can cause tiredness, mental fog, and long-term health issues like heart ...