Telomeres are a hot topic in current research for aging and biological changes. Telomeres can be figuratively thought of as the 'caps' at the end of a shoe lace (with the lacing representing DNA chromosomes). Telomeres protect chromosomes from degeneration, but it is known that this protective length decreases with age. This article aims to explore various types of physical activity and its impacts on telomere length, and how exercise can help resist telomere shortening through the natural aging process.