YOUR TELOMERES ARE SHORTENING. NOW, YOU CAN DO SOMETHING ABOUT IT! What is a Telomere? Telomeres are like the plastic ends of your shoelaces. With the protective covering intact, shoes are easy to tie. If the protective covering breaks apart, so do your shoelaces until they are unable to be tied. In the same way, telomeres protectively cap the ends of your DNA strands. Telomeres protect our cells so they can work properly.