Carla Boutin-Foster, MD, Director, The Comprehensive Center of Excellence In Disparities Research and Community Engagement (CEDREC)/ Assistant Professor of Medicine & Public Health, NewYork-Presbyterian Hospital/Weill Cornell Medical Center, explains how exercising less than 90 minutes a week can affect your health.

After years of trying to get pregnant, doctors told Kelsi Pierce it would be near impossible for her to conceive a child. However, Kelsi got the surprise of her life when her mom volunteered to be her surrogate — and she found out she, too, was pregnant!