Main content
Sorry, this episode is not currently available

Episode 6

Dallas downs his toothbrush to discover what causes tooth decay and gum disease, Yan explains why refreezing food is not a great idea, and Jem investigates new research that electric lights can play havoc with the way we sleep.

30 minutes

Credits

Role Contributor
Presenter Liz Bonnin
Presenter Liz Bonnin
Presenter Dallas Campbell
Presenter Dallas Campbell
Presenter Jem Stansfield
Presenter Jem Stansfield
Presenter Yan Wong
Series Producer Paul King
Series Producer Paul King
Series Editor Dermot Caulfield

Broadcasts

Find out more with The Open University

Visit the OU website.