Lee Salk Lee Salk Lee Salk (December 22, 1926 - May 2, 1992) was a child psychologist and author who is credited with discovering the calming effect the sound of a heartbeat has on infants. During the last third of his life, Dr. Salk made a great deal of public appearances on various television shows and lecture halls. He used these venues to dispense advice on how to rear children, especially infants. Salk was the younger son of Russian Jewish immigrants, Dora (Press) and Daniel Salk. He was born and reared in New York. Jonas Salk, inventor of the polio vaccine, was
Jonas Salk "I had an opportunity to spend time in elective periods in my last year in medical school, in a laboratory that was involved in studies on influenza. The influenza virus had just been discovered about a few years before that. And, I saw the opportunity at that time to test the question as to whether we could destroy the virus infectivity and still immunize. And so, by carefully designed experiments, we found it was possible to do so." In 1941, during his postgraduate work in virology, Salk chose a two-month elective to work in the laboratory of Thomas Francis at