Canine aging study aims to unlock healthier, longer lives for all

The Dog Aging Project tracks 50,000+ dogs to study aging and dementia, linking lifestyle factors to disease risk and showing that canine brain aging shares features with human dementia. The effort includes diets, exercise, blood work, and brain MRIs, plus brain donations for analysis. Early findings suggest dogs living with others and remaining active have fewer diseases, and a pilot rapamycin study showed reduced brain inflammation in some dogs, prompting larger NIH-funded trials and the push to develop dog-focused longevity therapies.