ADHD
"I would suggest anyone on this, to stop or take a break once you&#039;ve noticed your reasoning, memory recall abilities becoming hindered.  Even though I&#039;m happy with the benefits of focus, it&#039;s not worth losing your short-term memory.  Overtime, I noticed my math skills declined, followed by my word recall, spelling and now I can&#039;t remember stories or study material.  It&#039;s extremely debilitating, I&#039;m trying to figure out how to reverse the side effects."