Methods and devices for improved neurostimulation to treat obesity. Some methods include measuring temperature increases in Brown Adipose Tissue (BAT) during intraoperative test stimulations to determine the proper nerve electrode placement for implantation. Methods can include determining the side of the patient having the most BAT, and stimulating preferentially on that right or left side. The BAT maybe used to burn fat by stimulating the sympathetic nervous system innervating the BAT deposits.