5 Weird Involuntary Behaviors Explained!

The video explores various involuntary human behaviors, such as eye twitching, photic sneeze reflex, sleep starts, hiccups, yawning, and pee shivers. It delves into the causes, theories, and potential evolutionary reasons behind these actions, highlighting the complexity and mystery of the human body.

Discuss the theories behind why yawning occurs.

What are post-micturition convulsions and what might cause them?