Food defect could make thousands mentally ill

Factory farming has denied us chemicals in our diet that are vital to brain development, warn scientists.

Alzheimer’s drugs a waste of money, says NHS study

Drugs for Alzheimer's disease have little effect on patients' memory and do not stop the distressing deterioration of their lives, according to an important study published today.

When mimicry saves lives

The public is wary of non-human organ donors but a genetic modification to pig tissues could shorten transplant queues, argues Ian Wilmut.

Bottom line on obesity

Body size is largely inherited, a fact ignored by a recent health committee report, writes Vivienne Parry.