Summary: (Whole Show) Longer “healthspan” might be why the most popular Non-COVID story in Science Magazine last year involved the body-building supplement alpha-ketoglutarate (AKG), fed to middle-aged mice. Buck Institute of Research on Aging Scientist Gordon Lithgow explains. Executive Producer: Beth Bennett Producer: Shelley Schlender Additional Music: Stop This Train – by John Mayer. Listen to the show: