🧬 Semaglutide, Senescence & Survival: Can GLP-1 Slow Ageing?

🧬 Could semaglutide do more than treat obesity and diabetes? A fascinating study in aged female mice suggests that late-life semaglutide may act partly as a calorie-restriction mimetic—improving cognition, physical function and glucose control while attenuating multiple hallmarks of ageing. 🐭⏳ Most strikingly, median lifespan increased from 742 to 834 days. The biology implicates nutrient sensing, NAD⁺–sirtuin and insulin–IGF1 pathways.