Your brain is highly sensitive to a lot of factors beyond your willpower — but you’re not completely powerless. When you’re full after a big meal but still reach for a bag of chips or a box of cookies, you might blame it on a lack of willpower. But a new study suggests it could be due to how your brain responds to snacks, whether or not you’re hungry. In the study, published in the journal “Appetite” in March 2026, researchers measured people’s brainwaves after eating and found that despite