Category: harvardhealth_news_UNDEFINED

Air pollution is an often overlooked yet important contributor to cardiovascular disease. Tiny particles known as PM_2.5 travel deep into the lungs, where they irritate receptors and trigger nerves involved in the autonomic nervous system. This irritation also contributes to inflammation, which accelerates atherosclerosis. Climate change can worsen the damaging effects of air pollution in several ways, such as by promoting wildfires and dust storms, which creates more PM_2.5. To reduce pollution’s harmful effects, people can check air quality information and use portable indoor air cleaners when pollution levels are elevated.

The first-ever guidelines to diagnose chest pain document the range of possible heart attack symptoms. They include a sense of pressure, tightness, squeezing, or heaviness in the chest but also in the shoulders, arms, neck, back, upper abdomen, or jaw. The report also provides a road map to help doctors assess chest pain with selective use of the latest available tests. Chest discomfort can also result from other conditions that affect the heart (such as pericarditis) and nearby organs. These include acid reflux, muscle or joint issues, and lung problems.

People with atrial fibrillation (afib) often wonder whether certain habits—such as drinking coffee or not getting sufficient sleep—might trigger their episodes. Some notice that disruptions to their normal routine are likely to trigger a bout of afib—for example, exhaustion due to jet lag or indigestion after eating a rich, heavy meal. Evidence increasingly suggests that smaller amounts of alcohol (even just one drink) may also raise a person’s risk of afib, and some people may be more susceptible than others. But for many people, trying to identify afib triggers can be an exercise in frustration.

Stir-fries feature a healthy dose of vegetables combined with lean protein and a flavorful sauce. When served over steamed brown rice, stir fries are a good example of a well-balanced, nutritious meal.

Two main complications can occur with coronary stents: the gradual renarrowing of the area inside the stent, known as restenosis, and the formation of clots inside the stent, called stent thrombosis.

Eating breakfast is a good opportunity to eat some of the nutrient-rich foods that help keep the heart in good shape. One option is whole-grain toast topped with avocado, which is rich in healthy fats and fiber. Another is oatmeal, known for its ability to lower cholesterol. Adding fruits and nuts provides additional nutrition. Eggs are another acceptable choice, ideally paired with vegetables instead of bacon, sausage, and white toast.

Mental stress ischemia occurs when emotional stress causes a decline in blood flow to the heart. The condition, which affects about one in six people with heart disease, may more than double a person’s risk of heart attack. Mental stress ischemia appears to be caused in part by changes in the wall and inner lining of the heart’s smallest blood vessels. Known as microvascular disease, this problem tends to be more prevalent in women. In contrast, a more common cause of chest pain is narrowing of the large arteries of the heart.

An observational study published online Dec. 6, 2021, by JAMA Internal Medicine found that the risk of developing dementia was 29% lower in people who underwent cataract removal, compared with people who didn’t have cataracts removed.

In December 2021, the FDA warned consumers about an increase in supplements tainted with harmful ingredients, particularly supplements promising male enhancement or weight loss.

Tinnitus is an internal high-pitched ringing, whooshing, or hissing noise. The condition can make it hard to concentrate, reduce sleep quality, and cause irritability, nervousness, anxiety, depression, or feelings of hopelessness. Methods for easing tinnitus symptoms include treatment of underlying conditions, trigger avoidance, hearing aids, sound masking devices, exercise, stress reduction, and social connection. Certain programs can also help reduce tinnitus symptoms, such as cognitive behavioral therapy, group support, and tinnitus retraining therapy.