Social contagion can result in surprisingly self destructive behavior.
For the first time that I am aware of, we are seeing clusters of people seeking voluntary amputations of healthy limbs and performing amputations on themselves.
https://www.theatlantic.com/magazine/archive/2000/12/a-new-w...
That was in 2000 and since then it's only increased in scale. Tumblr alone saw widespread suicidal ideation, depression, self-harm and a host of identity crises.
Now the question is, what's the solution?