A very important detail - these are survey studies: "Of course, these studies relied on people’s shaky recall of exercise habits and were not randomized experim

A very important detail - these are survey studies: "Of course, these studies relied on people’s shaky recall of exercise habits and were not randomized experiments, so can’t prove that any exercise dose caused changes in mortality risk, only that exercise and death risks were associated." NOT Randomized controlled trials. So take these with a pinch of salt and then go outside & run for 30 mins every day.