
The task of harvesting the secrets of Brazil's vast Amazon rain forest that could help in the battle against cancer largely falls to Osmar Barbosa Ferreira and a big pair of clippers.

People who have had repeated flu infections -- or repeated flu vaccines -- may have some protection against the new pandemic swine influenza, U.S. researchers said on Monday.
Jack Sim, founder of the World Toilet Organization, has a theory about why governments and people are so reluctant to talk about hygiene: it isn't cool.
American squeamishness about talking about sex has helped keep common sexually transmitted infections far too common, especially among vulnerable teens, U.S. researchers reported Monday
When Japanese civil servant Yoshiyuki Takeuchi saw himself lagging behind his peers at work, alcohol was the only thing he felt he could turn to, becoming the latest victim of an addiction poorly understood in Japan.

President Hugo Chavez said in a televised speech Friday that "there are lots of fat people" in Venezuela.

Flu infections may be peaking in some parts of the northern hemisphere, but are still spreading fast in others, the World Health Organization said on Friday.
Exercisers trying to cut down on calories might want to take a run in the sun instead of a climate-controlled gym, according to a small Australian study.

A small bar of dark chocolate a day can keep stress at bay, according to a small study by international researchers.
America's baby boomers are likely to have far more trouble moving around as they get older than their parents had, U.S. researchers said on Thursday.