Tooth Decay and Refreezing food Bang Goes the Theory : Season 5 Episode 6
BBC One 30m
Aired: September 19th, 2011 @ 7:30 PM EST on BBC One
Dallas attempts to find out what causes tooth decay and gum disease. Yan explains the reason why refreezing food is not a good idea. Jem takes a look at some new research that claims electric lights can play havoc with the way we sleep.
