
When Keith Diaz was a doctoral student at Temple University, he came across a headline in Runner’s World magazine that seemed too wild to be true. “[The] headline was [something] like ‘Sitting is the new smoking’ even if you exercise, even if you’re a runner,” he recounts to Inverse. How could that even be? Exercise did your body good in tremendous and long-lasting ways, so said decades of scientific research, Diaz thought. How could the simple act of parking your tuchus instantly negate all those health benefits like an UNO reverse card?