Smoking 'even worse' than thought

Smoking is now thought to be the cause of a range of diseases previously not linked to the habit.

The US Surgeon-General Richard Carmona, in a report published on Thursday, said smoking could lead to cataracts, acute myeloid leukemia and stomach cancers.

"We have known for decades that smoking is bad for your health, but this report shows that it's even worse," Dr Carmona said.

Aljazeera.net sci-tech