Fat road to perdition

The death of an overweight 3-year-old opened the doors to a wave of simplistic hysteria about obesity, writes Vivienne Parry.

Investment in life

The world's first stem cell bank is now open. Stephen Minger is proud to be a contributor.

Black Death blamed on man, not rats

A new analysis of more than 100 plague epidemics which swept Europe for hundreds of years concludes that it was not spread by rodents running between villages and towns but by man himself.