LONGEVITY UPDATE: Switch in cell’s ‘power plant’ declines with age, rejuvenated by drug. “Researchers at the Johns Hopkins University School of Medicine have found a protein normally involved in blood pressure regulation in a surprising place: tucked within the little ‘power plants’ of cells, the mitochondria. The quantity of this protein appears to decrease with age, but treating older mice with the blood pressure medication losartan can increase protein numbers to youthful levels, decreasing both blood pressure and cellular energy usage.” Faster, please.