WALK, RUN, OR A BIT OF BOTH? Do you remember that old 1960 hit by The Ventures, “Walk, Don’t Run”? Ever wonder why they didn’t flip it to “Run, Don’t Walk”? Either way, it fits the theme of this week’s post: should you walk, run, or combine the two? Personally, I like to do a mix. These days, I start with a half-mile walk to warm up, then jog for five minutes, followed by a brisk one-minute walk, and repeat that cycle until I hit 5K (3.1 miles). Maybe you’ve been thinking about adding more exercise to your routine—whether it’s...