We all know that we should exercise. It's good for our hearts, minds and overall health.

And yet, actually doing it — and doing it consistently — can be surprisingly hard.

MPR News host Angela Davis talks with a behavioral researcher and a fitness expert about why so many people struggle to start and stick with an exercise routine, how to get motivated and what actually helps people build lasting habits.

Guests:

• Beth Lewis is a behavioral researcher, licensed psychologist and a professor of kinesiology at the University of Minnesota. Her work is focused on finding what actually helps people move more.
• Amber Ellison Walker is the head trainer and the co-owner of Happy Human Fitness, an in-home personal training company based in Minneapolis.