TORONTO (Canadian Press) -- Canadian scientists have made a major discovery about how cancer spreads: tumour cells appear to co-opt normal cells around them, in effect "talking" them into helping the cancer set up shop in other parts of the body.

LONDON (AP) -- Nearly everywhere around the world, people are living longer and fewer children are dying. But increasingly, people are grappling with the diseases and disabilities of modern life, according to the most expansive global look so far at life expectancy and the biggest health threats.