60 Minutes overtime. >> Good boy. Ready.You want it. >> This week on 60 Minutes, we reported on the Dog Aging Project, a collaboration between dog owners, scientists, and veterinarians to study dogs as they age. >> This way, Rob.>> Over 50,000 have participated so far. Some suffering from dementia. And the scientists working on the initiative, they hope that they can unlock the secrets of a longer healthier life for humans >> to understand human disease.And to be able to intervene and even prevent human dis ...

Let's talk about protein. >> Dr. . Aia wants his patients to eat a lot of protein, more than double what the current nutritional guidelines recommend.The doctor and a handful of his patients have also taken a drug called Rapamy that's FDA approved for use by transplant recipients. The drug has extended the lifespan of mice, but Dr. . Tia stopped taking it for now because it gave him mouth sores which can be a side. ...