Life span lengthens when mice feel less pain
Metabolism gets healthier in rodents engineered to lack a sensory protein
Mice with less pain live longer. When the animals lack a certain pain-sensing protein, their life span increases by an average of 10 to 15 percent, scientists report May 22 in Cell.
With age, many people suffer more frequent bouts of pain, says study coauthor Andrew Dillin of the University of California, Berkeley. He and his team wondered about pain’s connection to getting older. “We simply just asked, is pain actually driving the aging process or is it part of the process, just going along for the ride?” Dillin says.