newyorker:Here’s what’s supposed to happen when you fall asleep. Your body temperature
newyorker: Here’s what’s supposed to happen when you fall asleep. Your body temperature falls, even as your feet and hands warm up—the temperature changes likely help the circadian clocks throughout your body to synchronize. Melatonin courses through your system—that tells your brain it’s time to quiet down. Your blood pressure falls and your heart rate slows. Your breathing evens out. You drift off to sleep. That, at least, is the ideal. But going to sleep isn’t always a simple process, and it seems to have grown more problematic in recent years, as I learned through a series of conversations with some of the world’s leading sleep experts. Read the full story, “Why Can’t We Fall Asleep?” here. -- source link