Your ears don’t have eyelids, so they’re always on and always processing sound.When your brain registers noise during sleep, it can trigger a low-grade stress response. Your sympathetic nervous system activates, cortisol ticks up, and your body shifts into a subtle state of alertness. Over time, this chronic, low-level stress appears to influence lipid metabolism, specifically how your body processes and stores fats.
The Noisy, Nighttime Factor That May Be Sabotaging Your Cholesterol
