- Understanding Stroke Slideshow Pictures
- Take the Stroke Quiz
- Atrial Fibrillation Slideshow: Causes, Tests and Treatment
- Stroke FAQs
- Patient Comments: Stroke - Symptoms
- Patient Comments: Stroke - Treatment
- Patient Comments: Stroke - Recovery
- Patient Comments: Stroke - Signs
- Patient Comments: Stroke - Type
- Patient Comments: Stroke - Risk Factors
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- Stroke facts
- What is a stroke?
- What are the different types of stroke?
- What causes a stroke?
- What are the risk factors for stroke?
- What is a transient ischemic attack (TIA)?
- What are the warning signs of a stroke?
- What are the symptoms of a stroke?
- How is a stroke diagnosed?
- What is the treatment for stroke?
- What is the prognosis for stroke?
- Is recovery after a stroke possible?
- What is stroke rehabilitation?
- Can strokes be prevented?
Quick GuideStroke Pictures Slideshow: A Visual Guide to Understanding Stroke
What are the risk factors for stroke?
Overall, the most common risk factors for stroke are:
When stroke occurs in younger individuals (less than 50 years old), less common risk factors to be considered include illicit drugs, such as cocaine or amphetamines, ruptured aneurysms, and inherited (genetic) predispositions to abnormal blood clotting.
An example of a genetic predisposition to stroke occurs in a rare condition called homocystinuria, in which there are excessive levels of the chemical homocystine in the body. Scientists are trying to determine whether the non-hereditary occurrence of high levels of homocystine at any age can predispose to stroke.