Is the inertia all in our heads? Should exercising on “day one” really be any harder than on “day ninety-one” when workouts are tailored to respective fitness levels? What about eating? Does healthier eating really become more appealing over time, or is just a matter of mental discipline and habit? Is it just our tastes and routines that adjust, or do our brains change as well? You might be surprised….(This Mark's Daily Apple article was written by Mark Sisson, and is narrated by Brock Armstrong)