Career
Doctor Ehret researched the effects of electromagnetic radiation on bacillus megaterium with Doctor Edward Lawrence (Larry) Powers, as well as the effects of time shifts on paramecia, rats and humans. A graduate of City College of City College of New York (College of the City of New York) and the University of Notre Dame, Ehret formulated the term "circadian dyschronism", popularized the term zeitgeber ("time giver") in the 1980s while appearing on morning television news shows, and helped millions of travellers overcome Jet Lag with the Jet Lag Diet, and the recently updated (2009) international best-seller The Cure for Jet Lag book by Lynne West. Scanlon and Charles F. Ehret, Doctor of Philosophy, both available online. Ehret once created the world"s largest spectrograph, a rainbow 100 feet (30 m) long, that was large enough to bathe many petri dishes of tetrahymena in each 100 pm of the color spectrum.
During World World War II, Ehret served with the Army"s 87th Infantry Division.
Ehret died at his home in Grayslake, Illinois on February 24, 2007.
