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According to a 2024 review, the ketogenic (keto) diet—which is high in fat and protein and low in carbohydrates—doesn’t meet standards for a healthy diet and may not be safe for some people with heart disease.
About 38 million Americans practice yoga, and three-quarters are women. Some people hesitate to try yoga because they wrongly believe they must be slender and flexible and need to buy costly equipment. But yoga’s health benefits are plentiful and proven. Research suggests yoga eases depression, boosts sleep quality, improves chronic pain, and reduces cardiovascular disease risks. People can overcome their reluctance to try yoga by joining a class, taking a friend along, asking for modifications, and being patient with their progress.
A 2023 study suggests that older adults who exercise with their spouses might be less physically active than those who exercise on their own.
The demand for semaglutide (Wegovy, Ozempic) and similar weight-loss drugs has renewed interest in the dietary supplement berberine. Some people say berberine suppresses appetite and promotes weight loss, but no rigorous evidence supports that claim.
Frequent urination—defined as urinating more than eight times during the day or more than once at night—is believed to affect millions of Americans. Contributors can include drinking excessive amounts of liquid, substances that act as diuretics or bladder irritants, certain medications, pregnancy, aging, various medical conditions, and anxiety. People should consider seeing a doctor if lifestyle changes don’t reduce the number of times they urinate each day.
Nearly three-quarters of caregivers are 50 or older, and more than 75% are women. Research has linked caregiving to many physical and mental effects, including depression, anxiety, pain, and heart disease. Many caregivers don’t attend to their own health and may avoid or skip medical appointments. To address these burdens, caregivers can look into respite care, call their local Agency on Aging, ask for help from friends, and schedule telehealth visits with doctors or therapists.
In a 2024 study, men diagnosed with erectile dysfunction who took popular PDE5 inhibitors to treat their condition had a lower risk of developing Alzheimer’s than men who didn’t use medication.
Smokers were more successful at quitting when they used both electronic cigarettes and smoking-cessation counseling rather than only relying on counseling, according to a 2024 study.
Studies on alcohol’s health effects have shown conflicting results, Harvard experts say, leaving people confused. No randomized, controlled trials have been performed, and observational studies can’t easily tease apart drinking and other lifestyle habits that influence health, such as exercise, sleep, and social connectedness. However, drinking alcohol has been convincingly linked to developing breast cancer, so women concerned about their breast cancer risk should consider reducing or eliminating alcohol. For most other healthy people who enjoy an occasional drink, they can continue to do so.
People often confuse age spots with sun spots, which can develop into skin cancer. Age spots are flat, but sun spots (known medically as actinic keratoses) often feel rough and scaly. People should seek a doctor’s evaluation if they develop sun spots.