A trial has begun to see whether a drug used to treat diabetes can slow the progression of Alzheimer's disease.
The study will involve 200 patients with memory problems due to early Alzheimer's. Laboratory research suggests that the drug, liraglutide, reduces brain inflammation, improving the growth of brain cells and the connections between them.
Sohana Collins has never known a day without pain. The 11-year-old has a rare genetic disorder that means her skin blisters and tears at the slightest friction.
It also affects her internal skin, which means her mouth and oesophagus blister. This makes swallowing difficult and eating painful - her food has to be liquidised. The condition is caused by the lack of a protein that holds the skin together.
When we moved offices from Television Centre to New Broadcasting House a year ago, I made a resolution: I would not use the lift. In more than a year I have pretty much stuck to it.
It's not a big deal - I don't work in the Shard. There are just 56 steps down from my floor to the newsroom, via a spiral staircase. But it adds up over time, especially if you include trips to other parts of the building like Panorama (4th floor, 48 steps), or the World TV studios and make-up on Basement level 3 (114 steps).
The UK is facing an inactivity time bomb. Research suggests half of seven year olds don't get enough exercise. The outlook is even worse for girls. Whilst nearly two out of three boys do an hour's physical activity a day, for girls it is around one in three.
The results come from the biggest UK-wide scientific analysis of primary school children's activity. Many previous studies were based on survey results whereas this research, by University College London's Institute of Child Health, recorded the activity of 6,500 youngsters for a week.
How far should the courts interfere in interpreting the law on murder and assisted suicide? That was a key question that the appeal court had to consider in the cases of three paralysed men - "Martin", Tony Nicklinson and Paul Lamb.
Martin - who does not wish to be identified - describes his life as undignified, distressing and intolerable following a stroke. Tony Nicklinson, who died last year, said repeatedly that life was no longer worth living following his stroke.
What's the most useful thing you have done today? Could you spare two minutes that could - one day - perhaps decades in the future - save a life?
Joining the Organ Donor Register is simple. Nearly 20m people in the UK - almost one in three of the population - has done it. As well as signing up online, you can do so when you register for a driving licence, join a GP surgery - even when applying for a Boots Advantage card.
The decision of the government to support a ground-breaking technique for preventing serious genetic disease is a bold step for science and society.
Many researchers thought ministers would sit on this controversial issue. Instead, the chief medical officer, Professor Dame Sally Davies, has announced that draft regulations will be published within months.
I still remember the 29 tiny black coffins - each with a white cross - laid out in front of the General Medical Council. That was 1998 and the start of the disciplinary hearing into failures of two surgeons at Bristol Royal Infirmary.
The Bristol heart scandal led to a wide-ranging inquiry which concluded in 2001 that dozens of babies had died needlessly. It recommended that children's heart surgery should be carried out in fewer specialist centres.
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