The latest stories from the Health section of the BBC News web site.
Updated: 47 min 46 sec ago
The potential impact of a new cancer drug invented in Cardiff is described as "remarkable" at the world's biggest gathering of oncologists.
Marks and Spencer is to become the first UK retailer to add vitamin D to all its packaged bread and bread rolls.
A charity rounding up dogs in Africa to vaccinate them
A lung cancer therapy can more than double life expectancy in some patients, a major trial shows.
A teenager from Wales has spoken out about the night he ended up in hospital after taking a "legal high".
A study says Germany's birth rate has slumped to the lowest in the world, prompting fears labour market shortages will damage the economy.
A woman, whose brother was killed in a car accident, has met the man who was given his face in a pioneering transplant operation.
China is trying to track at least 193 people who may have come in contact with a man with Mers - the country's first confirmed case of the virus.
A woman whose brother was killed in a car accident has met the man who was given his face, in a pioneering transplant operation.
Body dysmorphic disorder sufferer Minnie Wright tells the BBC's John Maguire about the impact the condition has on her life.
Levels of unconscious racist and sexist bias have been reduced by manipulating the way the brain learns during sleep.
The ban on smoking in public places - which came into force in 2007 in England - has cut child hospital admissions by some 11,000 a year, research suggests.
Many supposedly "healthy" fruit snacks aimed at children contain more sugar than a bag of sweets, says campaign group Action on Sugar.
Concern is growing in South Korea over the spread of the Mers virus after a man defied quarantine to travel to China.
The number of people taken to hospital after attacks by dogs - and other animals including rats, cats and foxes - has risen by 76% in the past decade, new figures show.
A smartphone app is as effective at testing eyesight as an optician's clinic, a trial suggests.
Can Uganda stop the epidemic?
Scientists can transform bacteria into tiny living computers capable of detecting diabetes and cancer, early studies suggest.
Being a 'dibling' - a child biologically connected through egg or sperm donation, can lead to a large family of half brothers and sisters, as the Victoria Derbyshire programme finds out.
HIV drugs should be given at the moment of diagnosis, according to a major trial that could change the way the disease is treated.