Cardiovascular diseases, such as heart disease and stroke, are the leading cause of death globally, and were responsible for nearly 18 million deaths in 2019, while cancers caused 9.6 million deaths in 2017. Many studies have shown that moderate-intensity physical activity – such as brisk walking, hiking, dancing, riding a bike, or playing tennis – significantly reduce the risk of cardiovascular disease and cancer.  Although UK’s National Health Services (NHS) has recommended that adults perform such activities at least 150 minutes a week, a recent review study...