Physical activity: an investment that pays multiple health dividends: comment on combined effects of cardiorespiratory fitness, not smoking, and normal waist girth on morbidity and mortality in men,' 'physical activity and survival in male colorectal cancer survival,' 'effects of a television viewing reduction on energy intake and expenditure in overweight and obese adults,' and 'physical activity and rapid decline in kidney function among older adults'.

摘要

During difficult economic times, it is especially important to invest limited resources wisely. Choosing an investment strategy that will ultimately garner rewards requires strategies that turn low-risk investments into high-yield returns. This economic analogy is relevant to strategies for investing not only in the stock market but also in our health.Participating in a physically active lifestyle is one way to initiate or maintain a long-term investment strategy for multiple health dividends. In this issue of the Archive, 4 articles provide new evidence for the beneficial effects of physical activity on health. Two of the studies show that physical activity is associated with a delay in the development of conditions that are infrequently studied in relation to physical activity: recurrent colorectal cancer (Meyerhardt et al) and kidney function decline in the elderly (Robinson-Cohen et al).