Can’t stop eating fatty food? Blame your brain, researchers say.

A new study suggests that molecules of some kinds of fat travel to the brain, which then tell the body that it doesn’t need to stop eating just yet.

“Normally, our body is primed to say when we’ve had enough, but that doesn’t always happen when we’re eating something good,” study senior author Deborah Clegg, an assistant professor of internal medicine at University of Texas Southwestern, said in a university news...