John Driskill Hopkins, founding member of Zac Brown’s band, has ALS, says in the video

ALS, or amyotrophic lateral sclerosis, sometimes known as Lou Gehrig’s disease, is a disease that targets the nervous system, causing muscles to weaken and limiting physical function.

For several years Hopkins said he noticed problems with his balance and that his hands would become stiff. He said he met the doctors “and after careful analysis by some of the top neurologists in the country, I was diagnosed with amyotrophic lateral sclerosis.”

“Because my symptoms have been slow to progress from the start, we think they will continue to progress slowly in the future,” Hopkins said.

The video ends with a text line for a donation to ALS research and a message to “Hop on a Cure.” Hopkins is sometimes called “Hope”.