Content about the condition generates billions of views, but is it driving too many to self-diagnose?
Entries by BBC News - Health
More rigorous trials are needed to confirm the findings, the Canadian researchers say.
A pay deal affecting a million NHS workers has been reached, but three unions may still strike.
Raychel Ferguson was nine when she died at the Royal Belfast Hospital for Sick Children in 2001.
Ministers agree to pay a 5% rise in England - but nurses are still threatening strike action.
The recall includes Cadbury Flake and Dairy Milk Buttons and people are advised not to eat them.
Three-year-old Taiwo, who weighed just 9.8kg (1st 5lb), died of malnutrition and dehydration.
The closure of Mullaghbawn practice will leave more than 5,000 patients without a registered doctor.
The government says vaping has become a huge epidemic, particularly affecting young people.
NHS England warns that staffing levels in some parts of the country will be "exceptionally low".