Why do we spend a third of our lives unconscious — snoring, drooling, and totally useless to predators — and still survive as a species? (Evolution, seriously, what were you thinking?)

In this episode, Roxie dives into the fascinating biology of sleep — what it does for our brains, our bodies, and our sanity. You’ll learn how sleep repairs tissues, clears toxins, strengthens memory, balances mood, and even keeps your immune system in check.

This episode connects beautifully with last episode  topic (Why Do We Dream?) — zooming out from dreams themselves to the bigger question of what sleep is and why it’s non-negotiable for every living creature.