Prader-Willi syndrome is a rare and complex genetic condition, the hallmark of which is hyperphagia, an intense and insatiable hunger. Hunger and appetite, though, are different things, particularly from a biological perspective. Aardvark Therapeutics is developing an experimental therapy to treat Prader-Willi syndrome by targeting hunger as opposed to appetite. We spoke to Tien Lee, CEO of Aardvark Therapeutics, about Prader-Willi syndrome, the company’s experimental therapy to treat the condition, and why it may have broader applications in other forms of obesity.