The latest stories from the Health section of the BBC News web site.
Updated: 10 hours 11 min ago
Uruguay's decision to legalise the production, sale and consumption of marijuana violates international law, the UN drugs watchdog says.
Leading nations have committed to developing a cure or treatment for dementia by 2025 at the G8 dementia summit.
The goal of finding a treatment to cure or halt dementia by 2025 is "within our grasp", Prime Minister David Cameron has said.
'If mum takes her mask off, we are all at risk'
And nine other health hazards in Victorian homes
A soldier injured in battle is believed to be the first person in the UK to control a bionic arm with his mind.
Medical students from the US have brought together a number of medical mobile phone applications to create a 10 minute physical examination, including and ultrasound scan and heart rate monitor.
Why Uruguay is legalising its marijuana market
Electronic help for those with impaired speech.
A dementia care scheme known as 'Green Care' is becoming increasingly popular in Norway as it allows sufferers to remain in the community for longer.
Users tell how the drug affected their health
Research into the biggest care problem of a generation
Would you want to know how ill you might become?
Susan Boyle is part of autism's 'invisible generation'
Viv Galley, whose husband Bill has advanced Alzheimer's disease, had told the BBC her story.
How comic strips can improve medics' bedside manners
The doctor-patient relationship can be a close - but can it extend to social media?