Key points from article :
UK and Chinese researchers followed 500,000 Chinese people for 10 years.
Drinking 1-2 alcoholic drinks every day increased stroke risk by 10-15%.
Drinking 4 drinks every day increased the risk of having a stroke by 35%.
Risk of stroke increases proportionally with the amount of alcohol consumed.
About 1 in 5 people in the UK will have a stroke in their lifetime.
Effect on heart attack risk were not clear cut.
Researcher by the University of Oxford, Peking University and the Chinese Academy of Medical Sciences.
The study was published in The Lancet.
