Gen Z’s path to adulthood has been anything but smooth. Pandemic-era school disruption, the rise of social media, and heightened political tension have all collided during their formative years—leaving many struggling with focus, stress, and mental health challenges.

That reality is showing up on a campus. A growing share of college students are seeking medical evaluations for ADHD, anxiety, and depression—and requesting academic accommodations such as extended time on exams and papers. At some of the country’s selective universities, the numbers are striking: more than 20% of undergraduates at Brown and Harvard are registered as disabled. At UMass Amherst, it’s 34%; Stanford, 38%, according to data analyzed by The Atlantic.

While it’s clear that many students requesting accommodations do so for legitimate medical reasons and that increased diagnoses may reflect greater mental-health awareness, some experts have raised concerns about overdiagnosis and whether universities are making it too easy for students to qualify. And the debate has set off a wildfire on social media this week, catching the attention of high-profile business leaders, including Joe Lonsdale, the billionaire venture capitalist and Palantir cofounder.