Walking is what humans were made to do. Your ancestors have been doing it for thousands of years. It's only in the last 100 that people seem to be forgetting that walking is one of the most important exercises for staying fit and sharp -- with huge effects on your ability to succeed, stay positive and do the work you want to do. That's why taking a 30-40 minute walk (or longer) is something you should be doing. Here's why... Distributed by Tubemogul.