Today’s an exciting day for me. One of those jump out of bed early in anticipation of what’s to come days. Today is the day I get to announce the launch of Primal Blueprint’s Don’t Just Sit There program, packaged and perfected with my friend and world-renowned biomechanist Katy Bowman.

(This Mark's Daily Apple article was written by Mark Sisson, and is narrated by Brock Armstrong)