Physical Activity Archive

Strength training triggers many body reactions that protect people against chronic disease. For example, strengthening muscles helps reduce blood sugar, lower blood pressure, burn calories, and discourage chronic inflammation. Evidence suggests that getting 30 to 60 minutes of weekly strength training leads to the highest amount of health benefits. That's in line with the recommendation from the 2018 Physical Activity Guidelines for Americans. But doctors say any amount of strength training can help health.

Doing 30 to 60 minutes per week of strength training exercises is linked to a lower risk of premature death in general, and from heart disease in particular. Regular strength training may improve heart health by lowering the risk of blood pressure and metabolic syndrome. Body-weight exercises such as standing lunges and bench push-ups are a convenient way to build muscle because they can be done anywhere, without the need for special exercise equipment.

Around age 40, most people lose some height, and the decline accelerates with age. This "shrinkage" can be slowed by preventing osteoporosis and improving posture. Getting enough calcium and vitamin D can help increase bone density, and exercises for the back and abdominal muscles can help with posture.

Seasonal affective disorder, or SAD, is less common in summer, but a seasonal pattern of depressive symptoms can occur despite exposure to many hours of daylight. Many summertime SAD symptoms resemble overall depression markers, but eating and sleeping patterns can deviate. People can combat summertime SAD by sticking with antidepressants and psychotherapy, maintaining routines, exercising, and taking a break from social media.

Physical activity monitors, such as smart watches and fitness trackers, may help people get more exercise, such as extra daily steps and more moderate-to-vigorous activity per week. But the long-term durability of this behavior change is unknown. Using a fitness tracker requires more than just moving more; people also have to remember to keep the tracker charged, wear it consistently, and check their data. But for some people, the day-to-day feedback on their progress may help keep them engaged.

In a study published online Feb. 14, 2022, by the journal Heart, people ages 65 or older who exercised at least 20 minutes per day—especially men ages 70 to 75—had fewer heart attacks and a lower risk of premature death, compared with people who didn't exercise.

Water sports that use oars or paddles are effective forms of exercise with many health benefits. However, the sports may pose health risks, especially after age 60. The sports have a repetitive component to them. Paddling can stress the shoulder tendons. Rowing can lead to low back strains. Neither sport would be a good idea for people with tendinitis at the shoulder, elbow, or wrist; a diagnosed back problem such as a disc injury or spinal stenosis; or a previous back surgery.

Hiking continues to be one of the safest activities people can enjoy during COVID because it is done outside and away from confined group settings. The outdoor adventure also is one of the best exercises for both body and mind, as it can improve lower-body strength and endurance, increase balancing skills that can protect against falls, lower levels of stress and anxiety, and reduce the risk of depression.

Doctors advise that the best ways to lower risk for heart disease is to exercise, eat right, and adopt healthy lifestyle habits, like stress management, social engagement, and adequate sleep. But what do cardiology doctors do to practice what they preach? Three Harvard cardiologists share their heart-healthy habits and how they've overcome the same challenges their patients face.

Researchers who began collecting data on thousands of people, starting when they were children and following up decades later, found that five risk factors influence health outcomes in adulthood. Parents should know the important steps they can take to get their children started toward healthy lives as adults.