In her 2022 interview with David Letterman for his Netflix series, "My Next Guest Needs No Introduction," the singer discussed her experience with Tourette syndrome. Eilish was diagnosed with the neurological disorder at 11 years old, and she said people sometimes misunderstand it. "I'm very happy to talk about it," Eilish told Letterman, per People. "I actually really love answering questions about it because it's very, very interesting, and I am incredibly confused by it and I don't get it," she added. Some of Eilish's tics include wigging her ears back and forth, raising her eyebrow, clicking her jaw, and flexing certain arm muscles. "These are things you would never notice if you're just having a conversation with me, but for me, they're very exhausting," Eilish told Letterman. That said, opening up and talking about TS made the "Bad Guy" singer realize she is not alone.
