I agree with the OP.
I will share one of my theories with you. It is simply a theory, although it is something I truly believe in.
Human psychology is something truly fascinating. I truly believe in the power of one´s mind and the connection between one´s body and mind.
Body and mind are both affecting eachother in unimaginable ways. Mental part shapes the physical, although physical part also shapes mental part. When
we are born, we are give certain basis for our genes, although I believe up to some point all of these genes can change. Our beliefs, values and
social connections shape our minds, while they also shape our physical parts and by that our children inherit a bit different genetics than we
inherited from our parents. We have either evolved or in more negative lifestyle moved in the opposite direction. There are studies which have shown
that the brain changes during life. Recently there was a study which concluded that even sleep deprivation might alter our genes.
Now, imagine what the life of people was before psychology even existed, for example 400 years ago. It was a system of "boxes". It was rare, if even
impossible to rise up from poverty. Where you were born, you had to live for the rest of your life. People had no choice, but the accept it. During
that period, there was not many autistic people nor there was even a word for stress. It is hard to understand, but for such people being in stress
was simply out of their mind. They simply worked, worked and worked without thinking about life or where they want to get to, they simply lived
without overthinking everything. Even a word like searching for one´s path basically nonexisted. (soul search, pursuit for happiness however you
would call it).
Everything changed when the society evolved. Countries and structures were founded. Now everybody had the chance to do whatever they wanted to do.
Anybody could make a company. If you had a bad job, you felt worse, as you had the chance to become something more, something better, more powerful.
When the technology came there were even more options for people. They had more and more different opportunities and different things to do.
X-generation was was living in the American Dream. It was a world full of opportunities. Y-Generation already got even more opportinities with all
television, movie industry, pop-music. And the Z-generation has computers, which basically give you endless opportunities. ADHD has increased a lot
recently and it is all because of endless opportunities. You have the chance to do anything and that is what creates a restless mind.
The last two paragraphs were probably not the best explanations. I am becoming tired, 2 AM here
Although the main point is. I believe that at first
the amount of different mental disorders was minimal, because of the overall structure of the world. People just accepted their roles without
questioning and stayed calm. Although when the world developed, people got more rights, more options, the amount of mental disorders skyrocketed. It
was because people started to think too much on what could be and that altered the genes somehow, which inherited to their children and their children
had already dispositions and with so many choice, these came out and after that it is the current life.
Imagine how hard it would to be a kid nowadays. You can simply do anything. No wonder there is all this ADHD, when instead of doing something that
needs discipline, the kids can do whatever they want what is interesting, like playing video games, watching TV, facebook. There is so much
opportunities and that creates restlessness.
I would no be surprised if nearly 90% of kids born in the end of this decade or after that will have some kind of mental disorders.
Of course there might be also other reasons for example too much unnatural foods and chemicals, although I believe one of the reasons is also
overthinking and having too much opportunites at once. It is a huge difference if you do something when you have nothing else to do or you have to do
something where you basically endless other things to do, which are much more interesting for you.