The so-called “weekend warrior” exercise approach offers an enticing trade: skip the workouts all week, and cram them into one or two days instead. It sounded great to me, until I realized it could turn my hard-earned “Thank God it’s Friday” into “Oh God, it’s Friday.” Still, for people who genuinely lack the time to exercise during the workweek, this approach could offer real convenience—and real health benefits. A recent study in Hong Kong has supported that idea, finding that people who packed all their weekly exercise into one high-intensity…
