Noah is a 3-year-old boy recently diagnosed with epilepsy (a seizure disorder). His physician noticed that he experienced two weeks of increased seizures after his medications were changed. His symptoms got worse: he also felt more lethargic (lazy/tired), he had ataxia - which makes it hard to speak - and he lacked energy. His test results showed that his liver cells were working more slowly than usual, and his muscle cells were weakened.