Ex-NFL star Chris Johnson diagnosed with ALS at 39

Chris Johnson, the ex-NFL running back for the Tennessee Titans, disclosed his ALS diagnosis in an interview with ABC's "Good Morning America." ALS, also known as Lou Gehrig's disease, is a progressive neurodegenerative disorder that affects nerve cells in the brain and spinal cord, causing difficulty with muscle control. At just 39, his diagnosis highlights the unpredictable nature of the disease, which typically strikes later in life, and underscores the urgent need for more research and support for ALS patients and their families. Johnson's openness could help raise awareness and funding for ALS research, offering hope to others facing the same challenge.