In a major advance in science, DNA from Bronze Age skeletons is providing clues to modern medical mysteries.

Carl Zimmer, who covers life sciences for The Times, explains how a new field of study is changing the way we think about treatments for devastating diseases.

Guest: Carl Zimmer, a science correspondent who writes the Origins column for The New York Times.

Background reading: 

• human-genes-multiple-sclerosis.html?smid=pc-thedaily">Ancient Skeletons Give Clues to Modern Medical Mysteries
• Morning Person?sleep-morning-people.html?smid=pc-thedaily"> You Might Have Neanderthal Genes to Thank.

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