Are you too old to start exercising?

As you would expect, the answer to that question is a resounding no; it’s never too late to start exercising, as long as you are physically able to do so. According to the Centers for Disease Control and Prevention, adults who are 65 or older can work out as far as they are generally fit, including either 2.5 hours of moderate-intensity aerobic activity or 75 minutes of vigorous-intensity aerobic activity per week, or if possible, a combination of both, as well as muscle-strengthening activities a couple of days each week. 
Additionally, researchers from the Epidemiology & Public Health at the University College London have shed light on the benefits of exercise on healthy aging. The English Longitudinal Study of Aging followed 3,500 subjects aged 64 on average for eight years, and concluded that those who habitually exercised at moderate or vigorous levels at least once weekly were 3-4 more likely to avoid major diseases and disabilities, remain in good mental health, keep the same level of cognitive abilities and maintain social connections and activities. 
The studied individuals were categorized as inactive, moderately active, and vigorously active. Moreover, their medical histories were open to researchers to check for health problems and chronic conditions, and their cognitive abilities and mental health were assessed as well. The participants were interviewed every two years, after which they were classified as ‘always inactive,’ ‘became inactive,’ ‘became active,’ or ‘always active.’ Seventy percent remained active the whole way through, while 10% became active at some point. 
The rest, who remained or became inactive, had an increased risk of developing a long term health condition, depression, disability, or cognitive impairment. Conversely, those who regularly exercised had a better chance of aging healthily. Seems like the 80% of American adults who don’t get an adequate amount of exercise could learn a thing or two from this British study.