WHAT’S GOING ON?
Everyone you’ve seen is participating in the Ice Bucket Challenge. The challenge involves daring a person to dump a bucket of ice water over their head within the next 24 hours, or else donate money, usually $100 toward fighting ALS. Even if a person completes the challenge, they’re more than welcome to donate money too.
Once a person completes the challenge, they’re also supposed to dare several other people, usually three, to participate, which is why the challenge has been growing and growing.

WHAT’S ALS?
The challenge is all about raising money and awareness for Lou Gehrig’s Disease
ALS is amyotrophic lateral sclerosis, but you probably know it better as Lou Gehrig’s disease. It’s a fatal disease that makes people who get it lose muscle control, including the ability to eat, speak, and breathe. Life expectancy for those with it is between two and five years, and the only drug available for it is only able to extend that by a few months.