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Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes... -
(Visit: http://www.uctv.tv/) Does stress speed up the aging process at a genetic level? Our cells are constantly aging. When cell divide some telomere is lost but if it becomes too short, that cell can no longer replicate and eventual dies. Elissa Epel...