If you've ever felt like following your heart instead of your head, there's a good reason why -- our hearts might be a lot smarter than we give them credit. Listen to this fascinating BBC story about how some cells in the heart may have memory and store emotions. Shortly after she received a heart transplant, one woman suddenly started to feel like February 17th was a very important date. She later discovered that was her donor's birthday -- an important day, indeed. Learn more about why the heart is smart.