Javid asks if gyms are really less hygienic than toilet seats. Helen Lawal examines if chicken pox is worse if contracted from a sibling. Can bacon sandwiches cause cancer?
Javid tests the theory that eating food that has fallen onto the floor could actually be good for people's health. Helen investigates the possibility of an invasion of super-nits.
Does out-of-date make-up make you ill? Can you catch a cold just from being cold? Why do so many of us struggle to get a good night's sleep in any bed other than our own?