Attention deficit hyperactivity disorder (ADHD) has become an increasing commonplace childhood malady, affecting somewhere between 5 to 9 percent of American children ever year. Back in 2012, a blog was written claiming it explained the reason “Why French Kids Don’t Have ADHD.” In the article, Dr. Marilyn Wedge made the astonishing claim that while American children suffered ADHD prevalence rates of around 9 percent, French children have a prevalence rate of “less than 0.5 percent.”