Australian scientists have for the first time discovered how drugs could attack the abnormal "plaques" clustering in the brains of people with Alzheimer's disease, giving hope that new medicines could be developed.
Julia Medew If you could look past her long wiry red hair and thick black skin, Suma looked very similar to the human patients Dr Kevin Moriarty and Dr Marinis Pirpiris usually care for.
Sarah Berry New theories propose a connection between toxin levels in our modern diet and obesity.
Michael Koziol Can you teach yourself to be funnier – and better company in the presence of friends and family?
Henry Belot Some are concerned that e-cigs will act as a gateway to nicotine addiction.