What is it that makes us laugh? We find out what makes us giggle and keeps stand up comedians in work! Plus, we ask if eating Turkey really makes you sleepy... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Tryptophan and Turkey

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...