Your dog will have an anti-aging drug before you do

Before we have an anti-aging drug for humans, we’re likely to have one for dogs. Whether anti-aging supplements for dogs work or not, there’s likely to be demand, said Arthur Caplan, a professor of ethics at New York University. Sinclair’s trial used dog owners’ subjective assessments of cognitive changes in their older pets — and other scientists say the trials don’t show a consistent enough effect even for this more modest claim. Brenner is also skeptical of those who claim various treatments or drugs can reverse a person’s “biological age” as calculated through proxies measured in blood — including telomeres and epigenetic markers. Once scientists understand the mechanisms of aging, they’ll be much better able to find ways to help us — and our furry friends — live longer and healthier lives.