Physical activity and exercise Archive

Increasingly, tests that measure C-reactive protein are marketed to health-conscious consumers as a way of determining if they have chronic inflammation. However, the test is just one piece of evidence and should be interpreted by one's doctor. Without that expertise, a customer might not understand what the CRP test result means, and as a result might suffer unnecessary anxiety or pursue unnecessary tests. It's best to talk to one's doctor before seeking tests that measure CRP levels.

Protecting the skin from the sun doesn't increase the risk of vitamin D deficiency or bone fracture, according to a recent study.

The Federal Trade Commission called on companies to issue refunds to people who purchased anti-aging products due to unsubstantiated marketing claims.

Certain devices that use magnetic chargers may interfere with cardiac devices such as pacemakers. A doctor should advise people on which ones to avoid or to use caution when operating.

Most people don't benefit from colonoscopies after age 75, but before stopping they should have a discussion with their doctor.

A test called a coronary artery calcium (CAC) scan uses a special type of x-ray to look for plaque in the arteries of the heart, which raises the risk of heart-related problems. While CAC scans can be valuable for detecting people at higher risk of heart problems from plaque buildup, this test isn't right for everyone. It's typically most useful for people who don't yet have symptoms of heart disease, but who do have some risk factors. Determining how much plaque is in the arteries can help guide decision making about preventive strategies. The test is less useful for people at very low or very high risk for heart disease.

Getting adequate sleep may help improve a person's gait, and catching up on short sleep may help people avoid walking problems usually caused by fatigue.

Studies of contestants from the TV show The Biggest Loser found that due to changes in metabolism, people who have lost large amounts of weight have to follow an extremely low-calorie diet in order to maintain the weight loss. Subsequent research indicates that these metabolic changes are related to calorie restriction while weight is being lost, but later become a function of sustained physical activity.

With colds, flu, and COVID variants circulating, keeping your immune system healthy is even more important. Advertising would have you believe that some supplement or other is the key to protecting yourself from getting sick, but the best strategies to protect yourself involve common sense and simple steps.