Key points from article :
Researchers found information about 947,497 strokes between 2001 and 2010, resulting in 337,085 deaths.
About 35.5% of people who had a stroke died.
Total number of strokes decreased, but mainly in older age groups.
Most of the reduction in stroke deaths came from better stroke care.
Stroke rates are increasing among young people may be due to obesity and cocaine use.
Eating healthy, exercising regularly, avoiding smoking and alcohol are the best ways to prevent a stroke.
The researchers who carried out the study were from the University of Oxford.
Research was published in the peer-reviewed British Medical Journal.
