Most of us know that we have a heart. We know that it beats - sometimes faster, sometimes slower. But just how many times does it beat in a day? We asked Dr. Courtney Jordan Baechler to have a heart-to-heart with us about this question. (She is also the host of the podcast Heart-to-Heart Conversations!)

Got a question that you just love? Send it to us at BrainsOn.org/contact, and we won’t beat around the bush!