Yawning is more than a sign that you’re tired. In this episode, we break down what yawning may actually be doing in the body, why it shows up during transitions in alertness, and whether fake yawning can really help you fall asleep. You’ll also hear a simple way to think about yawning at night: not as a sleep hack, but as a signal that your system may be winding down. 

Also yawning could be a secret signal that triggers your next breakthrough.