Diseases & Conditions Archive

A 2023 Harvard study found that regularly squeezing a week's worth of exercise (150 minutes) into just one or two days—a "weekend warrior" approach—is linked to the same heart-healthy benefits as daily exercise.

A 2023 analysis of nearly 300 randomized trials found that several types of exercise were effective in lowering resting blood pressure. Exercise types included aerobic exercise, high-intensity interval training, dynamic resistance training, isometric exercise training, and combined training (aerobic exercise plus one of the other types of exercise). People who are over age 50 and have not been exercising much should check with a doctor before beginning a regular exercise program, since some types of exercise may not be right for them.

Excessive drinking can contribute to high blood pressure, obesity, and stroke, while moderate drinking (no more than one drink per day for women and two drinks or fewer per day for men) is linked to a lower risk of heart problems. One possible mechanism might be stress reduction. Brain scans of people who reported light to moderate drinking show less activity in the part of the brain that responds to stress, compared with the scans of people who abstained or drank very little. Stress not only raises blood pressure and heart rate but also triggers inflammation that causes plaque buildup, which contributes to heart attacks.

A 2023 study suggests eating enough of six categories of food common in popular heart-health diets is associated with a lower risk of cardiovascular disease, including heart attacks and strokes. The six groups are fruits, vegetables, legumes, nuts, fish, and dairy products.

A 2023 study suggests taking testosterone replacement therapy does not raise the risk for heart attacks or stroke among men with cardiovascular disease or a high risk for it, but it could increase the risk of atrial fibrillation, acute kidney injury, and pulmonary embolism.

While the bone-weakening disease osteoporosis most often strikes women, about 6% of men ages 65 and older have it. Preventing osteoporosis and treating it if it occurs focuses on stopping or at least slowing bone loss. The main ways to do this are maintaining proper calcium and vitamin D levels and engaging in weight-bearing activities and exercises that help build muscle and improve balance. Raising low testosterone levels or taking a class of drugs known as bisphosphonates also may help.

Who should get COVID vaccine boosters and when will remain in flux for at least another year. This summer, the FDA instructed the vaccine makers to have the next COVID vaccine target the XBB.1.5 Omicron subvariant. The CDC will be issuing specific recommendations by October, but infectious disease experts expect the newer vaccine to provide the most benefit for people over 65 and those younger with chronic conditions.

Lower temperatures, high wind speed, atmospheric pressure, high precipitation, and high degrees of pollution may raise the risk of being hospitalized for serious heart-related conditions. Modeling these factors may help forecast future heart problems.

Skin lumps or bumps occur on or just under the skin. Most are harmless. Aside from basal and squamous cell skin cancers, most other skin lumps are epidermal cysts or lipomas. Other growths include cherry angiomas, dermatofibromas, keloids, and very rarely cancerous tumors called sarcomas. People should seek medical attention for any lump appearing near lymph nodes, which sometimes signals cancer. A doctor should also evaluate growths that grow quickly, bleed, look infected, or feel painful. Most skin lumps or bumps don't need treatment.

Edema in the legs occurs when fluid backs up in the small vessels of the feet, ankles, or calves and pools in surrounding tissues. While most often not serious and easily managed, new or persistent edema requires medical evaluation.