What caused all these things to skyrocket since 1990?

Probably better health standards that allows people suffering with those to have a better chance of survival and then get diagnosed with it.

But you probably wanted a different answer didn’t you.

Plastics and processed food consumption. Two working parents, no time to cook real food. Break down of family structure.

Better diagnostics. More of these diseases and conditions are being correctly diagnosed. They’ve always been here, but now people know what they are.

Actually testing for things.

My entirely family before me is absolutely riddled with mental illness, just no one called it that when they were growing up.

Mostly likely our diets.