Many studies in recent years have highlighted the importance of exercise on overall health. It’s linked to reductions in obesity, type 2 diabetes, heart disease, cancer, and other disorders. A recent study has provided even more evidence to the benefits of exercise. According to it, 70 minutes of walking/activity a day led to a nearly 70% reduction in death, compared to those who moved the least.
For this study, researchers examined over 17,000 women. Each woman wore an accelerometer for a week. Researchers urged participants to go about their daily lives as normal. The accelerometers also did not display information to the women. Afterwards, they followed up with the women two years later.
The average of moderate to vigorous activity a day was 28 minutes. They also did 351 minutes of light physical activity such as housework or slow walking. The women who participated in the moderate to vigorous activity were less likely to have died by the two year follow up compared to the most sedentary participants. The reduction ranged from 60-70%. They didn’t see benefits to greater levels of light activity. However, the researchers suspect that if they had measured other outcomes, in addition to death, they would have found a benefit to light activity.
The nature of the study cannot prove a causal relationship, but researchers theorize that more than likely it is. Regardless, exercise is important for overall health and longevity.
SOURCES: I-Min Lee, Howard Selinger, Frank H. Netter, JoAnn Manson, Nov. 6, 2017, Circulation