Comment from Dr Joanne Knight, Associate Director of Research and Development at The Stroke Association on research into caffeine and cerebral blood flow in ischaemic stroke as reported in the journal Age and Aging.

Whilst studies have been undertaken into the effects of caffeine on cerebral blood flow, how this could affect ischaemic stroke patients requires further investigation. If future research demonstrates that drinking as little as two cups of coffee could adversely affect their recovery, then this should be addressed accordingly.

The Stroke Association would welcome more research in this area. We are dedicated to funding research that furthers knowledge into the causes of strokes, as well as prevention and treatment methods for the condition

Notes to editor

1. Each year over 130,000 people in England and Wales have a stroke. Of all people who suffer from a stroke, about a third are likely to die within the first 10 days, about a third are likely to make a recovery within one month and about a third are likely to be left disabled and needing rehabilitation. Stroke has a greater disability impact than any other medical condition. A quarter of a million people are living with long-term disability as a result of stroke in the UK.

2. The Stroke Association is the only national charity solely concerned with combating stroke in people of all ages. It funds research into prevention, treatment and better methods of rehabilitation and helps stroke patients and their families directly through its community services. These include dysphasia support, family support, information services, welfare grants, publications and leaflets. We also campaign, educate and inform to increase knowledge of stroke at all levels of society and we act as a voice for everyone affected by stroke.

3. A stroke happens when the blood supply to the brain is disrupted. Most strokes occur when a blood clot blocks the flow of blood to the brain. Some strokes are caused by bleeding in or around the brain from a burst blood vessel. When the blood supply is disrupted, parts of the brain become damaged or destroyed. Some strokes are fatal whist others can cause permanent or temporary paralysis to one side of the body and loss of the ability to speak, read or write. Recovery may be slow and can vary from person to person.

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