Gaining weight at a young age could sharply increase the risk of dying early, with early-onset obesity linked to a much higher lifetime health burden. Credit: Shutterstock When people gain weight during life can play a major role in their health decades later. A large study of more than 600,000 individuals from Lund University in Sweden examined how weight changes between ages 17 and 60 relate to the risk of dying from different diseases. The findings point to a clear trend: gaining weight