Having read the reports, I think it is some form of asphyxiation challenge. Some horrific online stuff out there that kids are too young to know the risks about. I am very wary of what my son does online - he is not allowed to have his phone etc upstairs - I don't necessarily check up on what he is watching but he is always around when he's on his phone so I know he's not up to anything too dodgy (I think)
https://www.newsweek.com/what-tiktok...ackout-1580014