Want to advertise on this website? Create your advert now.
Experts say the WHO's decision risks "pathologising" a behaviour that is harmless for most people.
By 2035 about 234,000 over-75s will get cancer each year - up from 130,000 now, a report estimates.
Adding or removing the colour cyan can have an impact on sleep, according to biologists.
Shirley Kordie's brother Joseph is a "perfect" stem cell match and is ready to donate.