No, Really, Save That Placenta

A biotech star is betting stem cells from the tissue can treat Crohn’s and MS and perhaps even slow aging

- Paul Tullis

Airplanes used to crash a lot, but last year saw the fewest air accidents since 1923 and the fewest deaths since 1929. One reason is that everyone is a lot smarter about maintenance. Although breakdowns still occur, airlines, equipment suppliers, and regulators have spent decades collecting and analysing data to predict when various parts will fail. They’ve adopted more refined inspection schedules based on each craft’s use and age. “We should be doing that to our bodies as well,” says Robert Hariri.