Cannabis harm worse than tobacco
Smoking a cannabis joint could cause as much lung damage as up to five tobacco cigarettes, scientists say.
July 31, 2007
Gene for left-handedness found
Scientists discover a gene for left-handedness - which may also increase the risk of mental health problems.
‘Death risk’ from air pollution
Low levels of exposure to air pollution can still increase the risk of dying early, a study says.
July 30, 2007
Inherited cancer fear ‘unfounded’
Many people worry unnecessarily about hereditary cancer, a survey shows.