What i never understood over the years was, why Ritalin was given to kids with ADD and ADHD.All though those two disorders are related,they do not have the same

What i never understood over the years was, why Ritalin was given to kids with ADD and ADHD.All though those two disorders are related,they do not have the same effect on a person. People with ADD tend to be tooo calm and appear to be slow ,on the other hand those with ADHD (including me) tend to be too Hyper , our minds are at full speed all the time which affects concerntrating on things we do not enjoy.I found out that Ritalin works well for me by relaxing the pace of my thoughts ,which in turn allows me to focus on a BORING thing like a volumous book. So now how can you give a person with ADD (Slow thoughts) a drug that will make them more slow and expect results. My conclusion is that Ritalin works better for people who have ADHD then those with ADD,and the reason why results on the improvement that Ritalin has ,have varied time and again is because a drug that work for one group (ADHD) was also given to those (ADD) it does not work for.In such a situation results will never be consistant.