Donatella LippiGiuseppe MasciaLuigi PadelettiFlorence, Italy Doctors since time immemorial have felt the pulse of their patients, noting its regularity, frequency, strength, and breadth, at times using colorful expressions to variously describe it as “formicant” or “vermicular” (ant-like or worm-like),1 and diagnosing “love sickness” in maidens by the presence of the so-called pulsus amatorius. (Fig 1.)…