Expected lifespan with Lou garricks disease?

There is no such disease as "Lou garricks disease". Lou Gehrig's disease, also known as amyotrophic lateral sclerosis (ALS), is a fatal neurodegenerative disease that affects the nerve cells in the brain and spinal cord that control voluntary muscle movement. The average life expectancy for someone with ALS is 3-5 years from the time of diagnosis, although some people may live longer or shorter.