Category: harvardhealth_news_UNDEFINED

Harvard Medical School has created a large department dedicated to developing and teaching young scientists about the emerging field of computational medicine. This field uses new mathematical techniques to make sense of the thousands of numbers generated in experiments measuring various molecules. Analyzing such “big data” was once unimaginable. Now, scientists have the tools to do it, and to compare tissue of people with and without a disease to find out which molecules are different.

Cardiac rehabilitation, which teaches heart-healthy habits coupled with supervised exercise, can help people with heart conditions prevent future problems. Some parts of the program can be done at home, delivered through a computer, tablet, or smartphone. Known as virtual cardiac rehab, this approach offers several advantages over conventional rehab, such as avoiding the time and expense of traveling to multiple sessions during the week.

A yearly influenza vaccine may help lower the risk of serious cardiovascular complications, especially among people who’ve had a recent heart attack. Pneumonia and shingles vaccines also help reduce heart attack and stroke risks. Early fall is a good time to get back on track with these vaccines. Several different types of flu shots are available; experts advise getting whichever one is most readily available. For those ages 65 and older who have a choice, three vaccines (Fluzone High-Dose Quadrivalent, Flublock Quadrivalent recombinant, and Fluad Quadrivalent adjuvanted) may offer slightly better protection than the regular-dose shot and are the preferred choice.

Vascular dementia, which arises from longstanding, cumulative damage to small blood vessels in the brain, may cause or contribute to up to half of cases of dementia. The vessels may thicken or become blocked by blood clots, causing tiny strokes that damage specific parts of the brain important for various thinking abilities. Keeping blood pressure in the recommended range of 120/80 or lower is the best way to prevent vascular dementia.

Anti-clotting medications have a well-known and fairly common effect: a heightened risk of bleeding. Being older, having certain health conditions, and taking certain drugs (including popular over-the-counter pain relievers) can increase this risk. Minor bleeding includes bleeding gums after toothbrushing or flossing and nosebleeds that take longer than usual to stop. Signs of more serious bleeding (which requires immediate medical care) include tea-colored, pink, or red urine; blood in the stool or black, tarry stools; or a sudden, severe headache.

Vegetarian chili is a filling, heart-healthy meal that can be dressed up with various toppings. Leftovers can be frozen in single-serving containers for simple dinners or lunches later.

Soil and water pollution from heavy metals, pesticides, and microplastics may affect a person’s risk of cardiovascular disease. These pollutants can enter the body when people eat crops grown in dirty soil, drink water contaminated by dirty soil, or inhale soil dust. Lead, cadmium, and arsenic are among the most pressing concerns. Potentially helpful actions include testing one’s drinking water, buying organic foods, and minimizing plastic use.

A bubble study is a test done in conjunction with an echocardiogram to check for the presence of a tiny opening between the heart’s upper chambers called a patent foramen ovale. Such an opening could explain how an unexpected stroke happened.

A persistent cough that lasts longer than a few weeks can be worrisome, but for nonsmokers, the most common causes include asthma, bronchitis, gastroesophageal reflux disease, and medication for high blood pressure.