This Workout Will Delay Aging (Science Says So)

According to a study conducted by the Mayo Clinic, high-intensity interval training, or HIIT workouts, was the most effective in keeping adults between 18–30 and 65–80 in the best shape at the cellular level. The downside was that, of the three workouts utilized in the study, HIIT was the least effective at building muscle mass. In other words, if you’re looking to bulk up, look elsewhere. But if you’re looking to stay young and healthy, give HIIT a try. If you don’t know where to start with HIIT, check out our comprehensive workout below. It’s the perfect 15- to 20-minute workout.

The HIIT Workout

Quick Reps, Quick Rest

1Push-ups: Your hands are on the ground, just wider than shoulder-width apart, with middle fingers pointing straight ahead. Your body is in a straight line from shoulders to ankles. Feet are 12 inches or less apart. Begin with arms fully extended, lower your body until they bend at 90° or less, push back so arms are fully extended. While doing push-ups, keep eyes fixed straight ahead, rather than on the ground. Exhale as you push away from the ground.

2Superman Back Extensions: Lay on your stomach, preferably on a carpet or yoga mat. Stretch arms straight out front with palms facing the ground. Stretch legs straight back. For each rep, fix your eyes straight ahead and raise arms and legs simultaneously. Breathing into your stomach while you lift will help keep correct form.

3Leg Raises: Lay down flat, back to the ground, palms facing down. Position palms underneath your butt for support. For each rep, lift extended legs up until they form an angle of slightly less than 90° with the ground, then lower them to the ground. Your core should be engaged during the exercise. Breathe out while lifting the legs.

4Supine Hip Extensions: Laying flat on your back with arms extended at your sides, place your heels on a chair. For each rep, lift your hips so that a straight line forms between your knees and your shoulders. Exhale as your raise the hips.

5Squats: This is a bodyweight squat with no weights. Start with your feet slightly wider than should-width apart and toes pointed a few degrees out to the sides. Squat down by bending at the knees and pushing your butt back and your arms straight ahead, parallel to the ground with palms facing down. Your knees should remain aligned over your feet, no farther forward than your toes. The low back should be slightly arched, not hunched. Push through your heels to return to standing, with arms by your sides. For this exercise, breathe out while squatting down, breathe in while returning to standing position.

6Burpees: Begin in standing position. Do a squat, but at the bottom of the exercise, place your hands on the ground and jump your feet back into the upper push-up position. Complete the push-up, jump the feet forward, returning to the bottom of the squat position. From there, jump straight up in the air, arms pointed to the sky. Observe breathing patterns from the squat and the push-up. You’re basically just combining those two exercises.

Do 20 reps of each exercise, breaking for 10 seconds of deep breaths between each. Repeat entire cycle 3-5 times. The whole thing should take about 15-20 minutes. Fitness geeks can substitute more intense variations of each exercise. For example, substitute clapping push-ups for regular push-ups. You know, for fun.

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