Participants filmed themselves dumping cold water on their heads and challenging another person to do the same or donate money toward research for a cure.
Washiriki walijipiga picha wakijiwekea mabonge ya barafu vichwani mwao na kumtaka mtu mwingine kufanya vile vile na akishindwa alipaswa kutoa fedha kwa ajili ya matibabu ya ugonjwa uliotajwa.