I like intensity when I train. Lifting heavy, running sprints, playing Ultimate Frisbee. I keep it brief, and the foundation is always a lot of slow movement throughout the day—easy runs, long walks or hikes, rarely sitting—but I go hard when I “work out.” What if you were to go slow, on purpose? Entire schools of physical culture are founded upon slow, deliberate movements. They squash momentum and lambast rapidity. They’re difficult in a different way. They require patience and fortitude. Take yoga. (This Mark's Daily Apple article was written by Mark Sisson, and is narrated by Tina Leaman)