Final answer:
The quote suggests that economically, supporting exercise in adults over 45 may lead to better health outcomes and lower healthcare costs due to aging. The U.S. Department of Health and Human Services recommends substantial weekly exercise for adults to gain health benefits, and such physical activity can reduce risks of chronic diseases and cognitive decline in an aging population.
Step-by-step explanation:
The quote "There are strong economic arguments in favour of exercise in adults aged 45 or over, but not in younger adults" is implying that from an economic perspective, encouraging exercise among adults aged 45 and older may be more beneficial than focusing on younger adults. This understanding is supported by evidence that shows exercise can slow down the deterioration of the body that comes with old age, leading to reduced healthcare costs and better quality of life. According to the U.S. Department of Health and Human Services (HHS), adults aged 18 to 64 should engage in at least 150 to 300 minutes of moderate-intensity aerobic physical activity per week, or 75 to 150 minutes of vigorous-intensity activity. These levels of physical activity have been correlated with substantial health benefits such as increased life expectancy, decreased risk of chronic diseases, and improved overall health. It's emphasized that engaging more in physical activity and less in sedentary behavior can result in health benefits, regardless of the amount of exercise. Furthermore, it is mentioned that the elderly, including Boomers, are looking to continue active lives past retirement, driving medical innovations to support this desire. The age group of 45 and over, which includes many Boomers, seems to benefit significantly from exercise in reducing the risk of incident dementia, heart disease, and maintaining a vigorous life. This suggests that economic investments in promoting exercise among this age group may lead to a healthier, more independent aging population that requires less medical intervention.