In a study of 2,913 men, those with higher levels of the sex hormone estradiol also had telomere lengths of men 3.6 years younger than their actual age. Scientists hope to one day figure out how to manipulate telomere length using hormones, and potentially extend human biological aging.

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In a study of 2,913 men, those with higher levels of the sex hormone estradiol also had telomere lengths of men 3.6 years younger than their actual age. Scientists hope to one day figure out how to manipulate telomere length using hormones, and potentially extend human biological aging.