Healthy aging and longevity Archive

The routine yearly medical check-up is now more often referred to as the annual wellness visit, which allows people to formulate detailed health goals with their doctor and design plans to meet them, as well as assess the possibility of life-changing events, like heart attack, stroke, and cancer.

A 2022 study of 78,000 healthy people (ages 40 to 79) who wore fitness trackers found that people who walked about 9,800 steps per day (about five miles) were 51% less likely to develop dementia, compared with people who didn't walk much at all.

Unhealthy lifestyle habits, chronic diseases, and genetic conditions can damage the kidneys and reduce their ability to do their many jobs. But many precautions can help protect the kidneys. Examples include controlling diabetes; lowering high blood pressure; moderating intake of salt, alcohol, and protein; limiting intake of oxalate-rich foods such as spinach, almonds, or cashews; losing weight; stopping smoking; exercising regularly; staying hydrated; limiting the use of nonsteroidal anti-inflammatory drugs (NSAIDs); and getting annual kidney function tests.

The miniaturization of electronics is leading to the development of next-generation devices to monitor health. People today are using various devices (typically smart watches) to measure their heart rate, the regularity of their heart rhythm, the quality of their sleep, their body temperature, and the levels of oxygen and sugar in their blood. And scientists are working on other devices—such as a thin strip of material that is pasted onto the skin—to constantly measure blood pressure, organ function, or certain body chemicals.

Having a dog or another pet appears to lower the risk of high blood pressure and improve blood pressure control. Pet ownership may foster positive feelings (such as decreased stress) and habits (such as daily walks) that may improve heart health. People who own dogs walk about 20 minutes more per day on average than those without dogs. Pets can help combat loneliness and social isolation, which have been linked to a higher risk of heart attack, stroke, or death from these causes.

Another holiday season is here, and this year we need to contend with other viruses besides COVID-19. Three Harvard experts share their thoughts on the best ways to keep ourselves and our family members healthy as we celebrate holidays together.

An ad campaign sponsored by the milk industry claims that milk is better than water for hydration. A few studies appear to support the claim, but they involved a small number of subjects and have important limitations.

Flooding due to major storms or heavy rains can harm lung health, both from toxic contaminants that end up in the air and from the growth of mold caused by dampness. Taking steps to prevent flooding when possible and moving quickly to reduce health risks if flooding occurs can help protect your family's health.

The accuracy of health monitoring devices available to consumers varies, and in some instances skin tone may make a difference –– a problem called device bias. Yet proper function of such devices can have significant implications for the health of those using them.

A 2022 study found that older adults who visited more places each day, such as when shopping or doing errands, logged higher step counts. The results suggest the number of places we visit daily may contribute to healthier habits, researchers said.