ADHD is said to be causing hyperactivity and a lack of attention. I dare question it being a legitimate disorder as well as what the actual resulting outcome is. I think it's not a matter of focus & energy, but rather a heightened curiosity. The way modern day society is constructed, wanting to know everything is frowned upon. When you question things like authority, you're rebelling and you're wrong. However, questioning things has, throughout history, been the power that drives mankind to become powerful enough to overcome their lack of physical attributes.

I think that mankind has evolved differently in different continents, causing a difference in genetically fueled curiosity. From the beginning of all that exists, organisms with genetic markers resulting in specific traits, that were favored in their environment, had a higher chance of reproducing. This we already knew. However, what Darwin only came up with the theory of evolution, the theory itself was something that was still to be questioned and actually proven to (very likely) be valid.

We've always been wondering questions like "Why are we here?" and "What would come after death?", but what we should've been wondering was: "How is this consciousness that is 'me' of use to me?". Consciousness has not been an ever existing tool that was granted by nature, but it is an extremely powerful one. An enormously advanced tool that grants your actions to have desired effects. All your conscious you is, is your steering wheel. When technologically was far from, well, anything, people had to get their minds of off thinking about the beginning and ending of life, to find the motivation to gather food and resources that enabled them to stay alive. This required a God to come into existence in their mind. As civilizations expanded and the earth becoming more and more populated, as mankind thrived, language developed.

Humans developed language as a tool to prevent themselves to feel urged to murder other human beings. Which may, at first, sound farfetched, but the existence of ‘their’ Gods was suddenly questioned. When people managed to get along, they had the ability to get back to living. This, however, changed meaning when the difference in culture and belief was too much different from theirs. This probably happened when boats were invented and we managed to travel overseas. After many years of war, for which our associative and imaginative brains developed tools as well, years of trade followed. However, war never left from existence and to this day, mankind is still the only species that is actively reversing evolution.

This reminds me of a TED Talk I watched recently, where someone spoke about monkeys being taught sign language. These monkeys knew how to communicate with us and they used this frequently, but never asked a “Why?” question. “Why?” questions are meant as a tool to question the environment and invent new ways to bend this environment to your profit. We should use the tool we already invented in the past so that we can challenge our environment once more. Let nature run its course the way it’s meant to be, but with combined knowledge instead of personalized. Looking throughout history, this has always been what we intended to do in the first place, but we’ve never really found time to communicate that origin with each other.

This all being said, what is referred to ADHD is not a hyperactivity disorder. As a matter of fact, I believe all psychological and psychiatric disorders are made up. Genetic markers for specific behavioral traits aren’t genetic markers for disorders. The behavior that results from the genetic variance, is just not comprehended by society and society’s response is inhumane. With labeling behavior as wrong, it becomes stigmatized. A negative image develops for the majority and those labeled are left without means of communication. ADHD is, as Salif Mahamane (link) beautifully named, “a glowing ember, waiting to be stoked.” What is observed is another human being, being unable to communicate his thoughts properly, due to the construct of modern day society. The result is frustration, but the hyperactivity is excitement when acquiring new information to think with.

Stigmatizing human behavior is cruel to its victims.

Train of Thought #1:
Remember how you're taught in school that you learn best from repetition?... I think you only learn what you're interested in and that you're only interested in what you can relate to. When repeating something uninteresting, you're forcing a way to relate to it. Why would you do something uninteresting in the first place? Well, this day and age, because of authority. We, as mankind, should banish authority from existence which, I predict, leads to our kind sustaining their position at the top of the food chain, while technology is no longer uselessly progressing into the vast eternity. We could keep things the way they are now, which I think will result in the destruction of earth if it isn't for our kind to lose its social character first.
In short this sums up three possible outcomes: Social humans/psychopathic humans/destruction of the earth.

Train of Thought #2:
The human reward system is a very odd mechanism, compared to what one would imagine. It would appear logical that doing something that goes well, would induce pleasure. However, the reward system is activated right after the response to fear. The fear-response flushes the body with adrenaline, thus making you extremely fit for fighting and surviving in life threatening situations. The fear-response is followed by a release of norepinephrine and dopamine, which is conceived as pleasurable. As a result, an initial fear of the unknown will easily be overcome. Something you're getting comfortable with, however, becomes dull. What I think is that epinephrine is a response to fear and norepinephrine & dopamine aren't so much linked to the fear, but rather to getting to understand something. Getting to understand is fun, you get no response from a constant state, thus knowing doesn't make you happier than not knowing.
We shouldn't have researched our internal existential debate nor should we have developed weapons to fight anything other than other human beings. Waging war against your own kind is idiocy. We should never have invented an economic system and we should never have started to accept athority.
We're now stuck with the mess we've made.

Train of Thought #3:
Could it be that our primate-brain is what has granted our kind with social characteristics? Even though we all think we're social, our reflexes are always aggressive. Therefore, a reflection of our behavior is not always a reflection of what we want. Cognition's role is to not only act, but also observe and consider. Reflexes originate from the reptilian brain.