There are two kinds of strokes. An ischemic stroke happens when a blood vessel in the brain gets blocked.

VOA: special.2009.09.22

Clots can block the flow of blood to the heart or brain and cause a heart attack or stroke.

VOA: special.2009.10.20

But experts generally advise against using the drug if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.09.22

Brain imaging showed that nearly eleven percent of them had suffered what is known as a silent stroke.

VOA: special.2009.08.12

But traditional guidelines say not to use tPA if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.08.12

To one it comes like the stroke of an arrow, shocking all the emotions to a sharper life.

VOA: special.2009.10.31

A study published in Stroke last year involved about two thousand people with an average age of sixty-two.

VOA: special.2009.08.12

Many people take aspirin to reduce the risk of a heart attack or stroke from blood clots.

VOA: special.2009.10.20

Paul Bunyan could clear large wooded areas with a single stroke of his large, sharp axe.

VOA: special.2009.01.24

Doctor Yusuf said the single pill, taken once a day, could reduce the average person's risk of heart disease and stroke by about half.

VOA: special.2009.04.08

"They found that men can experience up to a three-fold increased risk of stroke, and that risk seemed to be well correlated with the severity of sleep apnea."

VOA: special.2011.05.04

A stroke is a loss of blood flow in the brain.

VOA: special.2009.09.22

In 1898, Jack Gardner died unexpectedly of a stroke.

VOA: special.2009.01.11

"We estimate in WHO that over thirty million lives can be saved in the next ten years by simple measures -- reducing the level of salt by fifteen to twenty percent, reducing the amount of tobacco, and increasing the number of people who are at risk of a heart attack and stroke to be on simple preventive treatment."

VOA: special.2011.05.11

After a Japanese tourist died from heat stroke near Red Square, the Kremlin,suspended a weekly changing of the guard ceremony.

VOA: standard.2010.07.23

The small pilot project involved 10 video consultations between stroke patients and a team of rehabilitation specialists in Thunder Bay, a mid-size city near the U.S.border.

VOA: standard.2010.06.14

The pontiff wiped sweat from his brow with a handkerchief on a day when health workers treated several hundred of those in attendance for heat stroke.

VOA: standard.2009.03.22

Those comments echo earlier assessments by analysts here in Seoul, who say Kim Jong Il's apparent stroke about a year ago challenged perceptions of his complete command of the North's government.

VOA: standard.2009.06.22