The Ice Bucket Challenge was originally for ALS, also called Lou Gehrig’s disease. It was a viral fundraiser and awareness campaign to support ALS research and care.

Quick context

  • ALS is a progressive neurodegenerative disease that affects nerve cells controlling muscle movement.
  • The original 2014 challenge became famous for raising massive awareness and funding for ALS.
  • In recent years, some revived versions of the challenge have been used for other causes, like mental health awareness, but the original was for ALS.

Plain answer

If someone asks “what disease was the Ice Bucket Challenge for,” the answer is ALS.