Sleep Science

A thick blanket of snow falls outside your window. The world goes quiet. Your shoulders drop. Your breathing slows. You feel safe, tucked in, protected. The instinct is ancient. And it is backed by science. Snow absorbs sound. A fresh layer can reduce ambient noise by up to 60 percent, creating an acoustic environment similar to a soundproof room. The absence of sharp noises signals to your brain...

Your body lies still. Your conscious mind drifts into silence. But beneath the surface, your subconscious is working harder than it ever does while you are awake. It is cleaning, filing, repairing, and protecting you from threats you do not even know exist. While you sleep, your subconscious performs three critical functions. First, memory consolidation. The hippocampus replays the day's events, d...

You slept eight hours. You dreamed vividly. You woke up feeling like you ran a marathon. Your body is rested. Your mind is exhausted. The problem is not how much you slept. It is how much your brain worked while you were sleeping. During REM sleep, the stage where most vivid dreaming occurs, your brain is almost as active as when you are awake. The prefrontal cortex, responsible for decision-makin...