Human behavior has to be considered. In 1849, the British economist and philosopher John Stuart Mill expressed his concern for the environmental consequences of economic growth in 1848, stating: "I sincerely hope, for the sake of posterity, that they will be content to be stationary, long ...
carving out an hour a day to do moderate-intensity exercise—whichsome recent studiesrecommend—can seem intimidating. But when it comes to protecting your heart, even short periods of activity can go a long way.