Heart Attack Archive

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Avoiding winter heart attacks

Minimize risks with simple solutions such as preventing overexertion and preparing for cold temperatures.


 Image: Bigstock

As temperatures start to fall, your risk of a heart attack begins to climb. "Cold weather sometimes creates a perfect storm of risk factors for cardiovascular problems," says Dr. Randall Zusman, a cardiologist with Harvard-affiliated Massachusetts General Hospital.

Many of these risks stem from what Dr. Zusman calls a "mismatch between supply and demand." Cold weather can decrease the supply of oxygen-rich blood to your heart muscle. And it can put you in situations that force your heart to work harder; as a result, your heart demands more oxygen-rich blood. Such a mismatch-a smaller supply of oxygen to the heart coupled with a greater demand for oxygen by the heart-sets you up for a heart attack.

Stroke after a heart attack: What’s the risk?

Here's what heart attack survivors need to know to lower their chance of a future stroke.


Image: Bigstock

First, the good news: The rate of first-time heart attacks has dropped by nearly half in the past 25 years. And heart attack survival rates have surged, thanks to improved treatments. The bad news? Compared to people without such a history, heart attack survivors not only face a higher risk of a second heart attack, they're also more likely to have a stroke.

The risk of stroke is higher in the first year following a heart attack, especially during the first month. After a year, however, only the risk of ischemic stroke remains elevated, according to study in the July 2016 Stroke that tracked more than a quarter-million heart attack survivors over a 30-year period. (See "Types of stroke: Blockage vs. bleeding" for a primer on the different types.)

Daily aspirin for disease prevention: When do the benefits outweigh the risks?

A daily aspirin may help defend against heart disease, but it should still be used with caution.


Image: FlairImages/Thinkstock

Aspirin tablets have been a staple of home medicine cabinets and first-aid kits for nearly 100 years. Long before that, people chewed willow tree bark, which contains aspirin-like compounds, to treat a variety of ailments. On top of being an excellent painkiller and fever reducer at its standard dosage, aspirin dramatically reduces the risks for a second heart attack and certain types of stroke when taken daily at a low (81-mg) dose. Research also suggests that aspirin might help limit the growth of colorectal cancer and possibly inhibit other cancers as well, but more research in this area is needed.

These benefits, coupled with the fact that aspirin is both cheap and relatively safe, have led the U.S. Preventive Services Task Force (USPSTF) to recommend that even some healthy people take a daily aspirin to ward off future disease. But figuring out exactly who is likely to benefit most from this therapy is a more complex calculation, says Dr. Michael Gaziano, a professor of medicine at Harvard Medical School and cardiologist at Brigham and Women's Hospital.

Understanding silent heart attacks

Nearly half of all heart attacks are silent, meaning they are not associated with any reported symptoms. Silent heart attacks, which can be detected on electrocardiograms, should prompt people to follow the same prevention steps as with a more typical heart attack.

Why you should always have aspirin on hand

This old standby may not be your first choice for pain relief, but it still has an important role in disease prevention and first aid.


Image: Thinkstock

We have a lot to thank aspirin for. It's cheap and plentiful. It does a good job of relieving pain and bringing down fevers. It has also been shown to reduce the risk of heart attack, stroke, and colon cancer. It can even stop heart attacks and strokes in their tracks. In fact, if you're in your 50s or 60s, you may want to think about taking a low-dose aspirin every day.

After evaluating the results of scores of studies, in April 2016 the U.S. Preventive Services Task Force (USPSTF) recommended that women and men ages 50 through 69 who have a 10% risk of a heart attack or stroke in the next 10 years take 81 milligrams (mg) of aspirin daily. Under the previous recommendations—which, were different for men and women—daily low-dose aspirin was advised for women ages 60 through 79 who were at increased risk for cardiovascular events. The recommendation was revised to reflect a new method of calculating the risk of heart attack and stroke and of increased risk of bleeding in older people.

Thyroid disorders and heart conditions: What’s the connection?

Watch for an irregular heartbeat and cardiovascular disease.


Thyroid disorders are often overlooked as potential causes of heart problems, but there is a well-established link.
Image: AlexRaths/Thinkstock

The thyroid is a butterfly-shaped gland in your neck. It produces hormones—thyroxine (T4) and triiodothyronine (T3)—that tell your cells if they need to speed up or slow down. But if the thyroid gland is overactive or underactive, the result is a number of consequences and symptoms, sometimes involving the heart. "The connection to the heart is well established, but thyroid problems are often overlooked as the cause," says Dr. Giuseppe Barbesino, an endocrinologist at Harvard-affiliated Massachusetts General Hospital.

Cardiac rehab: Even better with stress reduction

Cardiac rehabilitation—a supervised program to help people recover after a heart attack or heart surgery—may be more helpful if it includes stress reduction training, according to a study published online March 21 in the journal Circulation.

Researchers compared three groups of heart patients: people who did cardiac rehab for 12 weeks, those who did cardiac rehab plus stress reduction, and those who chose not to participate in cardiac rehab. The stress reduction group engaged in weekly, 1.5 hour-long sessions that included small group discussions and training in stress reduction, coping skills, and relaxation techniques.

While waiting for your flight, learn how to save a life

Research we're watching


Image: Highwaystarz/Thinkstock

If your summer vacation plans include a stop at one of the nation's major airline hubs, you can put your waiting time to good use by learning cardiopulmonary resuscitation (CPR). The American Heart Association and the Anthem Foundation partnered to provide interactive training kiosks that teach people how to perform hands-only CPR in just five minutes. The pilot kiosk program at the Dallas/Fort Worth International Airport has trained more than 25,000 people so far.

The training includes a short a "how-to" video followed by a practice session on a rubber torso. You'll receive feedback about proper hand placement and the correct depth and rate of chest compressions—factors that influence the effectiveness of CPR. More than 20% of the estimated 359,000 cardiac arrests that occur outside the hospital each year happen in public places like airports, casinos, and sporting facilities.

The heart attack gender gap

Heart attacks strike men at younger ages than women. But survival rates are worse in women. Why?


Compared with men, women are less likely to recognize and act upon the symptoms of a heart attack.
Image: zaganDesign/Thinkstock

Imagine someone in the throes of a heart attack. If you picture a man clutching his chest in agony, that's understandable. At younger ages, men face a greater risk of heart disease than women. On average, a first heart attack—the most common manifestation of this prevalent disease—strikes men at age 65. For women, the average age of a first heart attack is 72.

The benefits of positive thinking after a heart attack


Image: Thinkstock

A heart attack or unstable angina (sudden chest pain that happens at rest) usually requires a hospital stay. After such events—which doctors call acute coronary syndromes—about one in five people ends up back in the hospital with heart disease or dies in the following year. But there's a bright side: new research suggests that survivors with an optimistic attitude are less likely to be readmitted to the hospital with heart problems.

The study, published in the January 2016 Circulation: Cardiovascular Quality and Outcomes, included 164 people, mostly men, who were hospitalized for acute coronary syndromes. Two weeks after the event, they filled out questionnaires designed to measure their sense of optimism and gratitude.

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