And you don't have to be vegan to follow the "planetary health diet".
Every three seconds in the UK, someone has an asthma attack which could be life-threatening, a charity says.
Genetic disorder Haemochromatosis can cause liver failure, diabetes and severe arthritis if untreated.
Scientists in Cambridge have built a 3D model of cancer to help in the search for new treatments.
15 sayings from around the world