- Harmful effects of being overweight underestimated 30 November 2017 The harmful effects of being overweight have been underestimated, according to a new study that analysed body mass index (BMI), health and mortality data in around 60,000 parents and their children, to establish how obesity actually influences risk of death. The University of Bristol study is published today in the International Journal of Epidemiology today [Friday 1 December].
