Stroke

Stroke is a condition which the blood supply to part of the brain is suddenly and seriously impaired by a blood clot or ruptured blood vessel. It occurs more commonly in later life and in people who suffer from high blood pressure or some other circulatory disorders.

The effects of strokes depend on how much and which part of the brain is affected.

In some cases, condition can be fatal. However, many people make a complete recovery from a stroke.

Following is a code which can helps to determine whether somebody has had a stroke by testing their response towards commands:

F- Face

A- Arms

S- Speech

T- Time

Here's a link for a helpful video from St. John Ambulance: http://bit.ly/VYucwh

Besides, early recognition can reduce damage to a person's brain and help their chances of making a full recovery.

Here's another short online video from St. John Ambulance: http://bit.ly/VYucwh

Source:
First Aid Manual

St. John Ambulance Facebook page ( https://www.facebook.com/SJA?fref=ts )