Stroke Archive

Articles

Traffic noise may raise stroke risk

A constant drone of low-level traffic noise may slightly raise your risk of cardiovascular disease, according to British researchers.

The study included data from the nearly 450,000 people admitted to London hospitals with cardiovascular disease over an eight-year period. Researchers estimated how much traffic noise these people were exposed to, day and night.

How to avoid a disabling stroke

Strokes hit women hard. Self-care is key to preventing a stroke and minimizing the damage if you have one.

This year an estimated 425,000 women will have a stroke, and 55,000 will die from one. Women are more likely than men to have strokes, and they are also more likely to be disabled or to die from them.

Stroke risk when you have atrial fibrillation

Now we have a better tool to calculate your chance of a brain attack if you've been diagnosed with afib.

Atrial fibrillation (afib) is among the most common heart rhythm irregularities. During a bout of afib, the usually rhythmic contractions of the heart muscle's upper chambers (the atria) are replaced by an ineffectual quiver that does not completely move blood out of the heart chamber. As a result, blood can stagnate and form clots. These clots can then travel to the brain and cause an ischemic stroke.

When the blood supply to the kidneys suffers

The renal arteries, which supply blood to the kidneys, can become narrowed or blocked—a condition known as renal artery stenosis.

Image: Thinkstock

Fatty plaque in the arteries that feed the kidneys poses a danger to the heart and brain.

Harvard study links depression to stroke

Here's another reason to get depression treated as soon as possible: a Harvard study found that people with persistent symptoms of severe depression were twice as likely to suffer a stroke compared with people who have mild symptoms. The study appeared May 13, 2015, in the Journal of the American Heart Association. Researchers looked at the health information of more than 16,000 men and women ages 50 and older. The participants were interviewed every two years during a 12-year period and asked about many health issues, including depression symptoms. Researchers found that people who reported high depression symptoms at two consecutive interviews were more than twice as likely to have a first stroke than people with low depression symptoms. The stroke risk remained high even after depression symptoms went away.

The study showed only an association, and didn't prove that depression causes strokes. So why the link? Researchers speculate that depression—which is associated with high blood pressure, increased inflammation, and physical inactivity—may have a cumulative effect that causes damage to the blood vessels over time. Bottom line: Seek treatment if a case of the blues lasts more than two weeks, because it could be a sign of depression.

How a sleep shortfall can stress your heart

Getting less than six hours of sleep on a regular basis can boost levels of stress hormones, which can strain your cardiovascular system.

Find out if your sleeping habits put you at risk—and what to do about it.

More people are using aspirin therapy

Daily aspirin use has increased among U.S. adults, according to a survey published May 2015 in the American Journal of Preventive Medicine. The survey asked more than 2,500 people ages 45 to 75 about their current aspirin use. The overall use was 52%, up from 41% in a similar survey in 2004. The most common reasons for taking daily aspirin were prevention of heart attack and stroke. Eighteen percent of aspirin users cited cancer prevention as their reason for taking aspirin. And while most users said they'd talked to their doctor before starting aspirin therapy, 25% of the respondents had not. That finding is troubling, since aspirin is a blood thinner. "Aspirin can increase the risk of bleeding in the brain or elsewhere in the body. This risk might be justified if there is a good reason for aspirin use, but might be entirely unjustifiable if not. That is why I always recommend discussing any medication or supplement use with one's primary care provider," says Dr. Natalia Rost, associate professor of neurology at Harvard Medical School. 

Image: Thinkstock

Think FAST to recall the warning signs of a stroke

One in six people worldwide will have a stroke in his or her lifetime. Learn to recognize a "brain attack."

Heart attacks often make themselves known with a hard-to-ignore, obvious symptom like chest pain. That's not the case for strokes, which can cause a wide range of symptoms that may affect your ability to speak, see, move, or feel. A stroke interrupts blood flow to the brain, depriving brain cells of oxygen and nutrients. Prompt treatment can prevent a potentially devastating disability or death—which is why everyone should know the top warning signs of stroke.

Adding folate to blood pressure medication reduces stroke

People with high blood pressure could benefit from a B vitamin known as folate if they are not getting enough from their diets, according to a study in The Journal of the American Medical Association (JAMA).

The study included more than 20,000 adults in China with high blood pressure who had never had a stroke or heart attack. Participants who took folate supplements along with a blood pressure medication had fewer strokes over the four-and-one-half-year trial than those who only took the medication.

Lowering blood pressure: How low should you go?

Blood pressure that is
neither too low nor too high nets better health.

Image: Thinkstock

The dangers of hypertension are well documented, but low blood pressure levels can cause problems, too.

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