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Short on Time? Try a HIIT Workout

By Erica Patino
Reviewed by Daniel Lew, M.D.
April 11, 2022

Feel like you’re too busy to exercise, or too out of shape to start? Think again. Staying active is important at any age, but once you hit 40, starting a new exercise routine may actually increase longevity. And adding high-intensity interval training (HIIT) to your exercise routine can be an efficient way to reap those benefits.

What Is HIIT?

High-intensity interval training, or HIIT for short, is a popular form of exercise. It’s known for being high-impact, of course, but in short spurts.

“When people say ‘high-intensity interval training,’ what they're referring to is a mix of anaerobic and aerobic work,” says Dani Singer, a certified personal trainer in Howard County, Maryland. “Anaerobic is strength training, and then aerobic is cardio.”

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