Do women really need to focus on cardio? Worry about heart health? Do a yearly mammogram? Meghan Rabbitt, author of the new bookThe New Rules of Women's Health, sets the record straight.

Find the BCRAT calculator here:https://bcrisktool.cancer.gov/

In a previous audio version of this story, Meghan Rabbit incorrectly said that ventricles "go in and out of our heart." In fact, ventricles are chambers of the heart.

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