hyperactivity

Brown started to suspect they also suffered from something else, what had recently become known as attention-deficit hyperactivity disorder, ADHD.

Robert F. Kennedy Jr. has tapped into these anxieties, blaming chemicals, food additives and medications for increasing rates of attention-deficit hyperactivity disorder, depression, anxiety and gender dysphoria.

Hundreds of lawsuits linking acetaminophen to autism or attention-deficit hyperactivity disorder have been filed, though a federal judge in 2023 ruled that the scientific evidence behind the claims was unreliable.

A turning point: Gabriel learned that the ill effects of certain synthetic food dyes can be amplified in children who have attention-deficit/hyperactivity disorder.

The exposure was also linked to particular symptoms of autism, including social withdrawal, hyperactivity and repetitive behaviors such as hand flapping and body rocking.