Further research on: ADD: did we create it?

ADD or Attention deficit hyperactivity disorder(ADHD)

• What is it? Google health had a lot to say about it( Link ) It is said to be inattentiveness, over activity or both.
  
• What are the signs of it? Google health listed what to me sounded just like a kid with too much sugar. "fails to pay close attention to details, difficulty sustaining attention, doesn't listen when spoken to, doesn't follow instructions, hates schoolwork) They all sound familiar to me.
• How do we cure it? Most children are put on medications such as: Methylphenidate (Ritalin, Concerta, Metadate, Daytrana,Dexmethylphenidate (Focalin),Amphetamine-dextroamphetamine (Adderall), Dextroamphetamine (Dexedrine, Dextrostat), Lisdexamfetamine (Vyvanse) But what do they do?
• -Methylphenidate: speeds up mental processes. used also to treat narsolepsy. I found this in a medical site (link) "THE MODE OF ACTION IN MAN IS NOT COMPLETELY UNDERSTOOD" How safe can that be? Oh and it also can stunt growth and weight gain. And that's just one drug.
  
• Another thing google warns you about is it causing sudden deaths in children with heart problems.
• It says ADHD is genetic. If that is so then everyone must have it.

I didn't want my bog to just be about what it is. So I started trying to find sites that agree with me that it is fake.
This isn't what I found however. I found a site saying it was proven to exist.

• Link it states that dophimine levels are what is affected.