Which organs are vital and which are luxuries of life? We asked Elena Teh, Medical student at Cambridge University, for the gory details... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Can humans spontaneously combust?

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...