[a-guest]

John Medina's Brain Rules: Rule #1: Exercise boosts brain power. http://www.brainrules.net/exercise

And he also notes that two of the worst environments for the brain are: (1) the office (2) the classroom

[rdudek]

This is actually a great book and I highly recommend anyone that lives a sedentary lifestyle that today's work environments promote.

[tamersalama]

Brain Rules mentioned that human ancestors walked about 12 miles/day (afair).