Can eating certain foods change the taste of bodily fluids? Why do I get congested after a night out drinking? And why does armpit hair stop growing at a certain length? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

What's actually happening when you get the wind knocked out of you? Why does swallowing combat yawning? And could we ever visualise someone else's pain? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.