Updated 13 January 2020
The best and worst diets for 2020
Which one comes out on top?
You'd never guess which diets bring up the rear...
E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places.
A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.