How the Ice Bucket Challenge - the 'original' social media craze, invented before TikTok - is bringing world closer to a cure for ALS, the crippling disease that killed Sandra Bullock's partner
Videos of people from around the world accepting the challenge earnt tens of millions of views across social media. Around 5,000 people in the UK and 30,000 in the US have the condition.
Source: dailymail.co.uk