29 Nov '12, 7pm

The too-much-running myth rises again...and @SweatScience puts it in perspective:

Of course, I have an agenda too. I like running, and that inevitably colors my perspective. I posted my thoughts on this topic in detail earlier this year , during one of the earlier iterations of this same debate (sparked by essentially the same article by James O'Keefe et al. in a different journal ). As I said then, there's no doubt whatsoever that the health benefits of aerobic exercise eventually reach a point of diminishing returns. Where is that point? No one really knows, but my personal feeling is that if you're running more than an hour a day, you're doing it for reasons other than optimizing health. Which is fine. But crucially, that doesn't mean you're hurting your health by running an hour a day, and when people start making suggestions like that, I agree with Thompson that they're twisting the data. Two examples:

Full article: http://www.runnersworld.com/health/too-much-running-myth-...

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