Former NFL running back Chris Johnson has publicly disclosed that he was diagnosed with amyotrophic lateral sclerosis (ALS) [1].

The announcement brings public attention to the challenges of Lou Gehrig's disease, a progressive neurodegenerative condition that affects nerve cells in the brain and spinal cord.

Johnson shared the news during an interview on Good Morning America, which was co-anchored by Michael Strahan [1]. The athlete, who played for the Tennessee Titans, New York Jets, and Arizona Cardinals, said that he chose to speak out to raise awareness of the disease [2].

According to reports, Johnson was diagnosed with the condition at age 39 [3]. While some sources list his current age as 40 [4], the diagnosis occurred last year following a series of unexplained symptoms that led to medical testing [2].

ALS causes the gradual loss of muscle control, which can eventually lead to the inability to speak or move. Johnson's decision to go public highlights the unpredictable nature of the disease, which can strike athletes and non-athletes alike regardless of their previous physical condition [2].

Johnson is originally from Orlando, where he first gained prominence before his professional football career [5]. By sharing his journey on a national platform, he aims to provide visibility to the symptoms, and the diagnostic process for others who may be experiencing similar health issues [2].

Former NFL running back Chris Johnson has publicly disclosed that he was diagnosed with amyotrophic lateral sclerosis (ALS).

The public disclosure of an ALS diagnosis by a high-profile former athlete like Chris Johnson increases visibility for a rare disease that often lacks early public recognition. Because ALS is progressive and devastating, such announcements often drive increased funding and public interest in research for treatments and cures, particularly concerning the intersection of professional sports and long-term neurological health.