Can shedding pounds after breast cancer keep it away?

This study looks at whether weight-loss surgery (sleeve gastrectomy) combined with lifestyle changes, or lifestyle changes alone, can help women who have had early-stage breast cancer and are obese. The goal is to see if losing weight might lower the chance of the cancer returning. Participants are women who finished breast cancer treatment at least six months ago, have a BMI of 35 or higher, and are disease-free. The study first checks if women are willing to join and stick with the program for a year, with plans for a larger future trial.