A recent study has found that students who are obese have lower test scores in math than students who are not obese. According to the study, children who were overweight when they entered kindergarten, began having academic difficulties in first grade through fifth grade. "There's a reason to think that there's an accumulation of potential negative effect for children who start kindergarten struggling with obesity and who [continue to] struggle," said lead researcher Sara Gable. "We need to address this issue of a cumulative effect."