Physical Activity Archive

Circadian rhythms, which are hardwired into nearly every cell of the body, regulate the heart and blood vessels. Disruptions to this rhythm—from shift work, poor sleep, or unhealthy habits—can raise the risk of cardiovascular disease. For example, heart attacks are more likely to occur on Mondays than any other day of the week. That’s because people tend to stay up later than usual and then sleep in the next day. On Monday morning, when they have to wake up early again for work, the change may cause subtle changes in blood pressure, hormone secretion, and metabolism that raise heart attack risk.

Exercise is one of the most powerful tools for preventing heart disease and extending life. Physical activity triggers favorable changes such as making cells more sensitive to insulin and reducing inflammation. It also helps keep blood vessels supple and flexible (which supports efficient blood flow), strengthens muscles (which helps burn more calories), and remodels the heart, making it more efficient at pumping blood through the body. Together, these changes all reduce a person’s chances of developing common risk factors for heart disease, including diabetes, high blood pressure, high cholesterol, and obesity.

Walking is often viewed as a casual form of exercise, but it also can be your primary form of moderate-intensity exercise if you increase the intensity, duration, and frequency of your workouts. You can adopt several types of workouts to help increase pace and endurance, such as intervals, timed walks, and pole walking. Wearing appropriate walking shoes and improving their walking mechanics also can improve walking speed and endurance.

Men often carry around extra belly fat and lose muscle mass as they age. An expanding waist could be sign of too much visceral fat, which is stored within the abdominal cavity and surrounds vital organs, including the pancreas, liver, and intestines. Research has shown that visceral fat can increase blood pressure, blood sugar, and total cholesterol levels, and raise the risk of fatty liver disease. Building muscle mass with resistance training and getting aerobic exercise improve muscle metabolism and help reduce visceral fat.

A 2025 study suggests that higher fitness levels may help protect people from developing atrial fibrillation.

Tai chi uses a series of gentle, flowing motions and slow, deep breathing to exercise the body and calm the mind. It’s good for health in many ways, especially for balance, which improves as the body becomes more attuned to changes in movement. Tai chi can be practiced outdoors as well as indoors, which is helpful during winter months. To get started in a tai chi practice, it helps to take a class with an instructor who supervises practitioners’ progress. Classes can be found at wellness centers and health clubs.

A 2025 study found that many people who use a fitness app to track their daily steps were able to maintain or increase their numbers over two years, suggesting the devices may have a long-term effect on motivation.

Older adults need a strong core to stay active and healthy. While the core comprises many muscles, the four main ones lie within the abdomen: the rectus abdominis in the front; the external and internal obliques on the sides; and the deep, flat transversus abdominis wrapping your midsection. Several core exercises work many of these muscles, but the dead bug exercise can engage all of them and is safe for older adults, as it can be modified for any age or limitations. The dead bug is done by lying on the back and moving the limbs up and down to imitate a dying insect.

Complete recovery from total knee replacement surgery can take six to 12 months. Working with a physical therapist to regain strength and mobility, most people can return to normal daily function within three months. It’s important to remain active once physical therapy concludes. Lower-impact activities, such as walking, hiking, biking, swimming, golfing, strength training, and aerobic activities, are recommended. High-impact activities, such as running, may shorten the life span of the implant.

A 2025 study suggests that even a single session of resistance training or high-intensity interval training increases levels of certain proteins that can inhibit breast cancer cell growth, potentially contributing to a lower risk of recurrence.