Mice engineered to have brains less sensitive to insulin live 18 percent longer than normal mice, new research shows.
The finding could help explain the link between low concentrations of insulin in the blood and greater longevity in centenarians and in some lab animals on calorie-restricted diets.
In the new study, mice ate high-calorie diets and so had high blood insulin.
Log in
Subscribers, enter your e-mail address for full access to the Science News archives and digital editions.