An ischaemic stroke happens when a blood clot, or other blockage, cuts off the blood supply to your brain. This is the most common type of stroke.
Find out more about the different types of stroke and why they happen.
Raconteur is a publishing house and agency which produces special reports and commentary for the Times and Sunday Times.
Published on Saturday 9 May 2015, the 'Understanding Stroke 2015' report consists of a number of articles covering different areas of current stroke news.