In an ideal world, many of us would like to hit the gym for an hour or two, with a decent warm-up, a well-thought-out workout and a gentle cool down. But life doesn’t always allow the time for that.

Clean a pair of dumbbells up to your shoulders. Take a deep breath and squat down, keeping your torso upright and dumbbells secure, until your thighs are below parallel to the ground. Stand back up ...

The session begins with a mobility-focused warm-up. In under five minutes, Mack leads you through 90-90 hip switches, world’s ...