Amyotrophic lateral sclerosis (ALS) is a rare neurological disorder that affects specific nerve cells in the spinal cord known as motor neurons. Symptoms involve issues with swallowing and speech, ...

Split hand syndrome is a potential sign of amyotrophic lateral sclerosis (ALS). This means that some of the muscles in the hand are weak and thin (atrophied), while others are less affected.

Concussions and traumatic brain injuries have been considered a potential cause of ALS, also known as Lou Gehrig's disease. But a new study argues the association might be the other way around, with ...