from reuters: It's official. That tub of ice-cream really can control your brain and say "eat me." A U.S. study by UT Southwestern Medical Center at Dallas has found that fat from certain foods such ice-cream and burgers heads to the brain. Once there, the fat molecules trigger the brain to send messages to the body's cells, warning them to ignore the appetite-suppressing signals from leptin and insulin, hormones involved in weight regulation - for up to three days. "Normally, our body is primed to say when we've had enough, but that doesn't always happen when we're eating something good," said researcher Deborah Clegg in a statement... The study was performed on rats and mice but the scientists say their results, published in The Journal of Clinical Investigation, reinforced common dietary recommendations to limit saturated fat intake as "it causes you to eat more."