It's a matter of life or death - Dr Andrew shows you the right thing to do in a serious medical emergency. We all know why fluoride is good for our teeth but is it good for our health? Michael Slater takes a look at this serious debate. A dog may be mans best friend, but can he look after your health? Brooke and her pet pooch Rogue find out. Can we sniff out our perfect partner? Leila plays the dating game to discover if pheromones really exist And the midnight munchies - is it healthy to eat just before bed, or will you just stack on the kilos.