The 7-Minute Scientific Workout — No Equipment Needed

The Problem

You don't have time to exercise. No gym membership. No equipment.

The Hack

Do these 12 exercises in order, 30 sec each: jumping jacks, wall sit, push-ups, crunches, step-ups, squats, tricep dips, plank, high knees, lunges, push-up rotation, side plank. Rest 10 sec between.

Why It Works

Published in the American College of Sports Medicine journal, this high-intensity circuit provides both aerobic and resistance training benefits in 7 minutes by alternating muscle groups with minimal rest.

Pro Tips

• Free app: Johnson & Johnson Official 7 Minute Workout
• No equipment — uses bodyweight and a chair
• Alternate upper and lower body for active recovery
• Do 2-3 rounds for a more complete workout