By Howard Calvert | Runners World
There is plenty of confusing messages out there on exactly how much exercise a week has the most health benefits. The NHS recommends 150 minutes of moderate physical activity, or 75 minutes of intense physical activity a week, but many runners do more than that. Other studies have concluded that too much exercise can do harm, in particular to the cardiovascular system, leaving runners scratching their heads as to how much exercise is healthy.
So, those who are worried they are not doing enough – or too much – exercise should look closely at the release of a new study published in Circulation. The study tracked more than 115,000 US adults over 30 years of exercise and found that those who did more than twice (and up to four times) the recommended amount of exercise a week lived longer.