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What is a Telomere

What is a Telomere?

DNA Telomere

Telomere (tel-uh-meer) from the Greek telos (end) and meros (part).

Telomeres are an essential part of human cells that affect how our cells age.1,2

Telomeres are the caps at the end of each strand of DNA that protect our chromosomes, like the plastic tips at the end of shoelaces.3

Without the coating, shoelaces become frayed until they can no longer do their job, just as without telomeres, DNA strands become damaged and our cells can’t do their job.3

Telomere Shortening during Cell Division

Telomeres are shortened as we age, but telomeres can also be shortened by stress, smoking, obesity, lack of exercise and a poor diet 3,4,6,7

Telomeres protect the vital information in our DNA4

DNA makes up all of the cells in our body. It is the genetic material that makes us who we are. And every organ in our body (skin, liver, heart, etc.) is made up of cells. So, telomeres are vital to our health.

Our cells replenish by copying themselves. This happens constantly throughout our lives. Telomeres get shorter each time a cell copies itself, but the important DNA stays intact.4

Eventually, telomeres get too short to do their job, causing our cells to age and stop functioning properly.3,4,5 Therefore, telomeres act as the aging clock in every cell.

Short telomeres are connected to premature cellular aging.3,8

Telomere shortening is involved in all aspects of the aging process on a cellular level. Telomere length represents our biological age as opposed to our chronological age.

Many scientific studies have shown a strong connection between short telomeres and cellular aging.8

Without the protection
from telomeres, our cells age and die


Scientists know a lot about telomeres, and they continue to find new evidence about the role telomeres play in the aging process on a cellular level8


The fact that telomeres protect our DNA was first observed in the 1930s.6

Scientists made the link between telomeres and cellular aging nearly 40 years ago.6

Research studies

In 2009, the Nobel Prize for Physiology/Medicine was awarded to three scientists who discovered how an enzyme called telomerase impacts telomere length.

First randomized, double-blind, placebo controlled study to show telomeres getting longer in humans.12

Today & tomorrow

There are more than 20,000 scientific articles published about telomeres.

An ever increasing number of scientists continue to study telomeres and the benefits of stopping or possibly reversing the telomere shortening that happens as we age.