In addition to the great benefits which this article discusses, exercise has also been proven to greatly reduce the risk of depression and Alzheimer's.<p>My personal opinion is that the 2 best things you can do to improve your own intelligence are to constantly challenge yourself to keep learning, and to exercise daily.<p>More info:
<a href="https://www.mayoclinic.org/diseases-conditions/depression/in-depth/depression-and-exercise/art-20046495" rel="nofollow">https://www.mayoclinic.org/diseases-conditions/depression/in...</a>
<a href="https://www.alz.org/alzheimers-dementia/research_progress/prevention" rel="nofollow">https://www.alz.org/alzheimers-dementia/research_progress/pr...</a>
The most relevant paragraph in the entire article comes (almost) at the very end:<p>"Dr. Repple says he and his colleagues are planning experiments to test whether and how various exercise programs affect fitness and the brain in people of different ages."<p>The reported study just documented correlations, so it gives no indication whatsoever on whether there are any causal effects at all.
Dumb question - do these correct for quality of life factors? Exercise, to some degree, is a luxury. Is this just another case of people who have access to nice things doing better?
Healthier people are healthier, indeed.<p>The challenge for some people is how to be physically fit, or how to fit that activity into their own lives or within their own limitations. But surely any activity is better than none. And limit caloric intake to reasonable levels, which will make fitness easier for anyone.