[rsync]

Can you provide a link to the lesswrong discussion where you learned this ?

Thanks.

[blaabjerg]

Google to the rescue:

http://lesswrong.com/lw/jrt/lifestyle_interventions_to_incre...

[dhimes]

Interesting article. However, this early sentence did set off my detectors:

Mental and physical performance are strongly correlated, meaning maintaining your body will help maintain your mind.

Of course, the conclusion is not supported by (only) the correlation.