Increasing the length of telomeres can be achieved experimentally through the activation of telomerase, which adds repetitive DNA sequences to the chromosome ends. In research settings, telomerase has been introduced into cells to extend their telomeres. However, in humans, this remains a complex and experimental process with potential risks, such as the promotion of cancerous growth. Lifestyle factors like exercise, stress reduction, proper nutrition, and maintaining a healthy weight may help slow the shortening of telomeres, but more research is needed to establish effective, safe strategies for increasing telomere length in humans.