In 30 years, organ transplants may be taking a back seat to a serum grown from the patient’s own cells and administered to heal the damaged organ. And those who need new organs will be getting new biological parts from 3-D printers. That’s the vision of Kenneth Brayman, who heads Transplant Surgery at the University of Virginia. Brayman discusses recent advances in organ transplantation. Also: Allergic reactions to everything from pollen to peanuts are making life miserable for millions. Lawrence Schwartz explains why our bodies over-react to these seemingly benign substances. Schwartz was named Outstanding Faculty of 2016 by the State Council of Higher Education for Virginia.

Later in the show: People who get a kick out of lying are said to have “duping delight.” Randy Boyle studies human deception at the Longwood Center for Cyber Security. He has devised a questionnaire that measures a person’s propensity to lie. Also: Each year there are many food recall or contamination alerts, but not everyone heeds the warnings. Christopher Brady looks at the psychological factors that determine which of us will act on the alerts. And: Researcher Andrew Neilson has found that certain flavanols in cocoa can reduce weight gain. His study identified one particular compound in cocoa prevented laboratory mice from gaining excess weight when fed a high-fat diet.