NFL record holder Chris Johnson has spoken publicly about his amyotrophic lateral sclerosis (ALS) diagnosis. The former Tennessee Titans running back, who led the league for rushing yards in 2009, was diagnosed last year at the age of 39.
ALS, also known as motor neurone disease, is a progressive degenerative disease that affects nerve cells in the brain and spinal cord. According to the NHS, it is the most common form of motor neurone disease, with an unclear cause and no cure.
Johnson, who used to be a dominant force on the field, now uses a speech-generating device to communicate. He first noticed a weakness in his right hand and initially thought it was something minor.
Johnson has been working with Dr Merit Cudkowicz, a leading ALS researcher, and his family to find experimental treatments that might help. He wants to raise awareness about the disease and the importance of early detection and more research.
Johnson's NFL career included stints with the New York Jets and Arizona Cardinals, and he remains an iconic figure in the American football world. His determination to raise awareness about ALS and his commitment to finding a cure are an inspiration to many.