This is literally in the article. > When Kamiyah’s mother revealed that Kamiyah’s grandmother has narcolepsy, the possibility that the child had inherited that

This is literally in the article. > When Kamiyah’s mother revealed that Kamiyah’s grandmother has narcolepsy, the possibility that the child had inherited that disorder was raised. Narcolepsy is a rare disorder that causes excessive daytime sleepiness and can induce something called a sleep attack, where sleep can come on suddenly, often at inappropriate times. In addition, most of those with narcolepsy experience something known as cataplexy — sudden transient muscle weakness episodes often caused by strong, usually positive, emotions. The fact that Kamiyah had most of her episodes of weakness when she was happy was suggestive of cataplexy. But her mother dismissed the questions of daytime sleepiness — she was a very active child — and the sleep studies weren’t consistent with a diagnosis of narcolepsy. None of the other tests were revealing either, so Kamiyah and her mother left the Mayo Clinic the same way they had come, without a diagnosis.