Vision and hearing Archive

A 2022 study of 350,000 healthy people found no evidence that high levels of physical activity fully offset the harmful effects of a low-quality diet, or that a high-quality diet fully offsets a lack of exercise.

When navigating the health care system becomes challenging, a number of professionals can help. Some, such as home care aides or certified nursing assistants, can assist with errands such as getting to the doctor and picking up medications. Others, such as Aging Life Care Professionals or patient advocates, can develop and run a person's overall care plan, negotiate with insurance companies, arrange to pay medical bills, research treatment options, hire and manage home care helpers, and more.

Sitting too much is bad for health. But there are ways to make time spent seated a little healthier. For example, people can keep their brains active by reading, writing, doing a hobby (such as knitting), or playing an instrument. And people can exercise while in a seated position. It's possible to do an aerobic workout that gets the heart and lungs pumping, such as a seated dance routine or calisthenics, as well as muscle-strengthening activities or stretching exercises.

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.

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.

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.