A haemorrhagic stroke is due to bleeding in or around the brain. While less common than strokes that are caused by a blockage, they can be much more serious.
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.
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.