what is a stroke,and what causes them?

Answer 1

Wow, a lot of wrong, some half right answers up there. I wish a doctor had answered you, but I'll take a crack at it. A stroke, also called a cerebrovascular accident (CVA) is an umbrella term for several types of problems that cause lack of blood flow to or within the brain. The general types are ischemic, in which blood flow is blocked and hemorrhagic, in which there is bleeding into the brain. There are subtypes within each of these broad categories. The effects of the stroke then depends on where and how severe the damage was to the affected parts of the brain. Often you will not see the permanent results for some time after the stroke. At first they can seem better or worse than they will actually end up. For example, if bleeding continues, a patient will worsen. On the other hand, some brain cells that temporarily lacked oxygen may regain function and the patient will improve. As for the cause, there are many. The different types of strokes have different causes. Hemorrhagic strokes may be the result of a burst aneurysm, head trauma, or many other causes. Ischemic strokes may be related to high blood pressure, arteriosclerosis, coronary disease, etc. I hope this helps, but it only touches the surface. Check out an online encyclopedia for more.

Answer 2

A STROKE IS THE INTERUPTION OF BLOOD FLOW TO THE BRAIN
What causes them?
depends on who your asking
in some cases the blood is inteerrupted by a clot in the primary artery
in other cases the artery bursts when a clot forms, usually within the brain
a high stress lifestyle can cause stroke
just as poor diet can
sometimes the risk factor is hereditary
if both of your parents had a stroke you are high risk


another definition of stroke is a brain injury

Answer 3

A stroke is where a small blood vessel in the brain breaks. It burts in half. Strokes are caused by mostly stress, but also high blood pressure and the deterioration of blood vessel walls as we age.

Answer 4

A stroke is basically a burst blood vessel draining into your brain...and there are varying degrees of how serious they are. The most common cause is untreated high-blood pressure, hypertension, and blood-vessels clogged by plaque build-up.
Get regular check-ups to avoid them...my mom had a very massive stroke back in 2000 and died 2 days later after falling into a coma....unchecked hyper-tension was the reason.
PLEASE...get check-ups...don't be afraid of what you don't know.

Answer 5

Stroke is when a blood-clot inhibits the blood to be distributed to the surrounding tissue. These clots might be caused by injuries on the bloodvessels, some medicines and medical conditions. Also Cholesterol.

Answer 6

A stroke is when a blood vessel in your brain pops (usually after swelling). I don't think they really understand what causes them, I think they just happen. Sometimes it can paralyze you or just one side of your body.

Answer 7

There are two types of stokes, the most common is a clot, the second type it a bleed - this is more likely if you are young. Both cause paralysis usually down one side although other effects can include loss speech or sight.

Answer 8

What is stroke? Most of 'em got the answer..
The causes ?.. Mostly genetics but your diet shoul be taken into account too..

Answer 9

A heart attack, caused by high blood pressure and
clotting of the blood vessels.

Answer 10

its a bleed usually through a weak blood vessel into the brain can be caused by high blood pressure