Life is fast, but the internet has made it even faster. Staying in shape allows you stay on your toes. Both metaphorically and literally. What we do with our bodies occurs just as much in our mind as it does in the external. Learn to do activities that are conducive to sharpening your thoughts. AKA never allow yourself to be bored. Or perhaps the art of living a good life in the modern world is knowing how to be bored.