Salmela J, et al. - Using data from the Helsinki Health Study, researchers identified adult BMI trajectories among midlife municipal employees (aged 40, 45, 50, 55, and 60 years) of the City of Helsinki, Finland and examined how childhood disadvantage, including parental education and different types of childhood adversity, was correlated with these trajectories. Four thousand three hundred forty-eight women and 918 men were involved in the final analysis data. Data were acquired from the baseline survey on childhood disadvantages, including parental education and 7 types of childhood adversity (their own serious illness; parental divorce, death, mental disorder, or alcohol problems; economic difficulties at home; and peer group bullying) before the age of 16 years. Investigators found that low parental education for both genders, multiple adversities, and repetitive peer bullying among women in childhood, and male parental alcohol issues increased the chances of developing obesity during adulthood. In order to explain how gender differences change the impacts of childhood disadvantage on adult BMI trajectories, further studies are required.