By the time her mother received the doctor's e-mail, Yuna Lee was already two years old, a child with a frightening medical mystery. Plagued by body-rattling seizures and inconsolable crying, she could not speak, walk or stand.
"Why is she suffering so much?" her anguished mother, Dr Soo-Kyung Lee, wondered. Brain scans, genetic tests and neurological examinations yielded no answers. But when an e-mail popped up suggesting that Yuna might have a mutation on a gene called FOXG1, Soo-Kyung froze.