Bernard L. Strehler

Bernard Strehler (1925–2001) was an early biogerontologist. He published the book Time, Cells, and Aging.

In 1949, he first purified firefly luciferin, which gives off light after being combined with ATP, magnesium ion, oxygen, and firefly luciferase. In 1956, he switched to the field of aging. He joined the faculty of the University of Southern California as a professor of biology and director of biological research at the USC Ethel Percy Andrus Gerontology Center.