Billy Joel, normal pressure hydrocephalus
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After Billy Joel revealed that he was diagnosed with the brain disorder normal pressure hydrocephalus (NPH), his daughter Alexa Ray, 39, whom he shares with ex-wife Christie Brinkley, shared a touching tribute to her dad.
Billy Joel's daughter Alexa Ray Joel reacted to his normal pressure hydrocephalus (NPH) diagnosis in an Instagram post shared on May 24, a day after the musician revealed he is dealing with the condition.