Smologies #28: AGING with Caleb Finch
b'How long can we live? How much of aging is genetics vs. environment? How old are your cells? What can we learn from the world\\u2019s oldest people? World-renowned aging expert and biogerontologist Dr. Caleb "Tuck" Finch takes a quick break from his prolific research at USC to answer Alie\'s sometimes basic questions about everything from molecules to Blue Zones.'