When my disease nearly destroyed me in 2009, my doctors thought I'd be lucky to regain 80 percent of my cognitive abilities. When I was at my sickest, I couldn't read or write. I could barely walk on my own or groom myself. The disease felled me physically and mentally - robbing me, briefly but intensely, of my wits, my sanity, my memory, my self.
— Susannah Cahalan