Dante’s dad wants people to know about Prader-Willi Syndrome.

People with Prader-Willi Syndrome (PWS) feel hungry all the time. That’s hard for most of us to imagine. We’re used to eating a meal and then feeling full for about two hours.

But kids with Prader-Willi don’t feel full. After they’ve eaten, they want to eat again. But of course if they do that, they’ll eat too much—not just three meals a day. That can lead to obesity—being overweight—which can lead to health problems.

Dante, who is now seven-and-a-half, was born with PWS. His dad, Keegan Johnson, wants to make people aware of the condition in order to raise money for research and, eventually, a cure.