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What are telomeres?

A protective structure known as a telomere is located at the ends of our chromosomes. By preventing DNA damage or chromosome fusion, these molecules protect our chromosomes.
DNA repeats form telomeres, which are linked by a protein called shelterin. It is often helpful to imagine them as aglets on a shoelace, which prevent the ends from fraying.
We all experience a shortening of our telomeres as we age. A shortening process can be accelerated in some individuals, or some cases, the length is abnormally short.