The groundbreaking and definitive account of the widespread misdiagnosis of attention deficit hyperactivity disorder—and how its unchecked growth over half a century has made ADHD one of the most controversial conditions in medicine, with serious effects on children, adults, and society.

More than 1 in 7 American children get diagnosed with ADHD—three times what experts have said is appropriate—meaning that millions of kids are misdiagnosed and taking medications such as Adderall or Concerta for a psychiatric condition they probably do not have. The numbers rise every year. And still, many experts and drug companies deny any cause for concern. In fact, they say that adults and the rest of the world should embrace ADHD and that its medications will transform their lives.

In ADHD Nation, Alan Schwarz examines the roots and the rise of this cultural and medical phenomenon: The father of ADHD, Dr. Keith Conners, spends fifty years advocating drugs like Ritalin before realizing his role in what he now calls “a national disaster of dangerous proportions”; a troubled young girl and a studious teenage boy get entangled in the growing ADHD machine and take medications that backfire horribly; and big Pharma egregiously over-promotes the disorder and earns billions from the mishandling of children (and now adults).

While demonstrating that ADHD is real and can be medicated when appropriate, Schwarz sounds a long-overdue alarm and urges America to address this growing national health crisis.