Women who get weight-loss surgery before having children may be doing their kids a huge favor. A study in the Journal of Clinical Endocrinology & Metabolism finds that children of obese mothers who had weight-loss surgery before getting pregnant are less likely to become severely obese than their siblings born before the surgery. Kids born post-surgery also had reduced insulin resistance and lower cholesterol. Researchers focused on 49 women who had undergone weight-loss surgery. All had children born before and after their surgery. Bottom line? By preventing extreme weight gain and encouraging weight loss for obese young women, it may be possible to break a family’s cycle of obesity.