clipped from: psychcentral.com 
“The surprising finding of a difference between genders in the ability to inhibit the brain’s response to food and hunger will certainly merit further study.”
“Even though the women said they were less hungry when trying to inhibit their response to the food, their brains were still firing away in the regions that control the drive to eat,” Wang said. “In contrast, men’s brain activity decreased along with their self-reports of hunger during the scan when they were asked to keep their hunger in check.”
“This may indicate a difference between the genders in the ability to perceive and respond to internal body signals,” Wang said.