I think people should be highly skeptical of articles like this, even without knowing anything about the subject in question. No byline/author. No citations/links to the studies in question. Confirmation of preconceived notions that people would like to be true (e.g. the sun as a wellness remedy instead of damaging to skin), including unfounded "just so" stories and claims about evolution, diabetes, and other unrelat…
That might be true, but it is also true that the positive health effects of aerobic exercise (e.g., increased fitness, increased insulin sensitivity) are responses to the oxidative damage caused by the exercise.