The sense of smell is so important. First of all, it's our alarm system. Something tastes foul, it's bad food, it would get us sick. You just put it in your mouth and your sense of taste ...

Jonas Olofsson, Ally Louks and Alan Chalmers celebrate our sense of smell, with Adam Rutherford. Show more Our sense of smell is vital to appreciating food and drink, it can warn us of danger ...