Amobi Okoye was in the prime of his life and career, a strapping young football player with eye-popping power and mobility who was looking forward to another NFL season.

Suddenly and cruelly, though, the former Texans starting defensive tackle found himself in a medically-induced coma for three months after being stricken with a rare disease that caused seizures and endangered his life three years ago.

As neurologists worked to diagnose and treat an autoimmune syndrome called anti-NMDA receptor encephalitis that had stricken Okoye and caused convulsions during workouts and initially prompted fears that he had suffered a heart attack, the former Texans' first-round draft pick lost roughly 80 pounds. Okoye has a 145-day memory gap from his time in the hospital before being released Aug. 7, 2013.

Okoye temporarily lost most of his ability to speak. He had to relearn other basic human functions, including walking and eating.