Brain haemorrhage risk tripled in heavy smokers

Quitting reduces the danger but heavy smokers who give up tobacco are still twice as much at risk as people who have never smoked.

Researchers in Korea investigated 426 cases of subarachnoid haemorrhage (SAH) due to burst aneurysm between 2002–04.

Patients were compared with a group of 426 people matched for age and sex who had not experienced a brain bleed.

Study participants who smoked were more likely to have suffered an SAH than non-smokers, the researchers found.

The more people smoked, the more at risk they were. After adjusting for other factors such as salt intake, weight and