Sergio Muñoz was only seven years old when he became a devotee of the band Kiss. Isolated and lonely, he imagined Gene Simmons as his own personal guardian angel.
We’re discussing the science of kissing with Sheril Kirshenbaum, author of the new book “The Science of Kissing: What Our Lips Are Telling Us.” Kirshenbaum recently spoke with the The World’s science correspondent, Rhitu Chatterjee.