Thanks for another one of your fascinating articles, Rebecca!

I also enjoyed your discussion with my friend, James Knight, and your various perspectives.

The heart is, of course, a pump-- one run by an electrical system (conduction system), as my husband learned when his heart started misfiring (tachycardia) and required numerous coronary ablations (small burns inside the heart to break up erratic electrical signals).

Your articles are always thought-provoking!