Charles Frederick Ehret

Charles Frederick Ehret is a WWII veteran (Battle of the Bulge/Ardennes along the Siegfried Line) as well as a world renowned molecular biologist who worked at Argonne National Laboratory (ANL) in Lemont, Illinois, USA, for 40 years. Dr. Ehret researched the effects of electromagnetic radiation on bacillus megaterium with Dr. Edward Lawrence (Larry) Powers, as well as the effects of time shifts on paramecia, rats and humans. A graduate of City College of CCNY (College of the City of New York) and the University of Notre Dame, Dr. Ehret formulated the term "circadian dyschronism", popularized the term "zeitgeber" = "time giver" in the 1980s while appearing on morning TV news shows, and helped millions of travellers overcome Jet Lag with the Jet Lag Diet, and Overcoming Jet Lag book, both available online. Dr. Ehret once created the worlds largest spectrograph, a rainbow 100 feet long, that was large enough to bathe many petri dishes of tetrahymena in each angstrom of the color spectrum.

During World War II, Ehret served with the Army's 87th Infantry Division. He was decorated with the Purple Heart and Bronze Star.

Ehret died at his home in Grayslake, Illinois on February 24, 2007.