Exercise and Fitness Archive

Exercising is crucial for good health, even if exercising doesn't help a person get down to a healthy weight. Exercising reduces the risk of high blood pressure, high cholesterol, high blood sugar levels, heart disease, stroke, diabetes, Alzheimer's disease, and premature death. If someone is overweight and unfit, the risk of premature death is double the risk of someone who is the same age and sex, and is overweight but fit.

In December 2021, the FDA warned consumers about an increase in supplements tainted with harmful ingredients, particularly supplements promising male enhancement or weight loss.

Hiking is similar to walking but can be more challenging and can provide a nice change of pace. Walking over uneven terrain typically burns more calories than a walk on a flat surface. It also builds muscle strength and improves balance. A wilderness walk also brings mental health benefits. Choosing a path to a scenic destination may motivate people to go farther and climb higher and increase fitness gains.

Many people experience dizziness, or a feeling of being woozy or lightheaded, from time to time. In most instances it's triggered by a minor underlying problem, such as dehydration, a medication, or blood pressure fluctuations. Only rarely is dizziness caused by something more serious, such as a heart rhythm disturbance or stroke. However, even if dizziness isn't caused by something serious, it can lead to a dangerous fall, so it's important to prevent these episodes when possible. People should get emergency help for dizziness that is long-lasting, severe, or accompanied by other symptoms, such as difficulty walking or numbness.

Two categories of shoulder injuries are particularly common among older adults: rotator cuff injuries and shoulder bone fractures. The key to warding off shoulder injuries is to keep the joints healthy, strong, and flexible. Many of the strategies to do this are the same ones that will reduce fall or fracture risk. Examples include weight-bearing activity, stretching, improving balance, and eating a healthy diet. Other strategies include strengthening the shoulder muscles, stretching the shoulders right before activity that requires shoulder power, and removing fall hazards from the home.

The FDA recently moved to help make certain that women considering breast implants have a clear picture of what implants involve before moving ahead with surgery. The agency announced a series of changes in October 2021. These include new labeling requirements for breast implant manufacturers, a requirement that facilities provide patients with a checklist outlining potential risks and benefits related to breast implants, and updated screening recommendations to detect leaks in silicone breast implants.

U.S. adults who report being physically active say their most frequent forms of exercise are walking, gardening, and weight lifting, according to a study published online Oct. 8, 2021, by the CDC's Morbidity and Mortality Weekly Report.

A study published online Oct. 4, 2021, by the journal Medicine & Science in Sports & Exercise found that about 46,000 U.S. cancer cases per year can be attributed to getting less than 300 minutes of moderate-intensity exercise per week.

Many factors can impair balance and lead to falls, such as vision, hearing, or joint problems; medication side effects; and environmental hazards. To improve balance and reduce the risk for falls, one can remove fall hazards from the home, treat underlying conditions that increase fall risk, consider adjusting medications that affect balance, get physical therapy, use an assistive walking device, wear supportive shoes that hold the feet in place, and frequently challenge balance with balance exercises.

A study published online Aug. 20, 2021, by Nature Metabolism suggests that the hormone irisin, produced during exercise, might have something to do with the beneficial effects of exercise on the brain. Scientists suspect that irisin plays a role protecting the brain against changes characteristic of Alzheimer's disease, possibly by reducing brain inflammation. Irisin has also been shown to turn white fat cells (which store fat) into brown fat cells (which burn fat), and also to improve insulin resistance. Such changes reduce body weight and protect against both diabetes and heart disease.