Watch.
All the stories in here will be about: ADD, ADHD, generic "depression," Anxiety, and stress.
Nothing about brain tumors, congenital nerve diseases, or anything remotely un-related to one's socialization.
The human mind was relatively unchanged for thousands of years UP UNTIL about 200 years ago.
The world is more complex and we're still grasping how to come to terms with our place in society, what it means to be ourselves, and how we can still maintain a sense of value.
I'm fairly skeptical of a lot of these claims.
About 70% of the mental health stories I hear about online seem like they're a result of one's inability to cope with the demands of society or one's inability to reconcile how their lives have deviated from what they expect.