"Mice that took semaglutide also did better than control animals on tests that evaluated coordination, muscle function and how the body processes sugar. Moreover, when the researchers investigated a set of cellular and molecular changes thought to drive ageing in the body — including inflammation — they found that their effects were dampened in treated mice compared with untreated ones."

In most rich developed countries average lifespan is about 83 years. If this GLP-1 effect holds true for humans, that would bring their lifespan to 93. Furthermore, the GLP-1 drugs improved the quality of those years.

Taking 65 as a retirement age, then this might double the amount of time a pension could be paid out. People already worry about supporting an aging population in the future, now this "problem" could be more acute. But of all the problems facing humanity, this is one of the best to have. 9 extra years of life is overwhelmingly good news, and we'll learn to adapt, as humans always do.

Can GLP-1 drugs slow ageing? Mouse study shows promise