Tag Telomeres

The Hayflick Limit

In 1961 microbiologist Leonard Hayflick demonstrated that a population of human fetal cells in a cell culture will divide approximately 50 times before they stop. With each cell division in our body the ends of our chromosomes, the telomeres, get slightly shorter. This process continues until they shorten to a critical length, appropriately called the Hayflick limit. At this point the cells […]