Leonard Hayflick

Leonard Hayflick
Leonard Hayflick
Born	May 20, 1928; Philadelphia, Pennsylvania, U.S.
Died	August 1, 2024 (aged 96); Sea Ranch, California, U.S.
Alma mater	University of Pennsylvania (PhD);
Known for	Discovering the Hayflick limit; WI-38 cell strain; Vaccine Production; Cell culture; Aging research;
	Scientific career
Fields	Biochemistry; Biophysics; Cell Biology; Enzymology; Genetics; Molecular Biology;
Institutions	Wistar Institute; University of Pennsylvania; Stanford University School of Medicine; University of Florida; UCSF School of Medicine;

Leonard Hayflick (May 20, 1928 – August 1, 2024) was an American biologist and professor. He was born in Philadelphia, Pennsylvania.

In 1961 he discovered that normal human and animal cells have a limited capacity for replication. This discovery is known as the Hayflick limit.

Hayflick died in Sea Ranch, California on August 1, 2024, at the age of 96.^[1]

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