adhd
"When I was 12 years old. I woke up at 2 in the morning to blindingly agonizing pain, bad enough that I found myself screaming at the top of my lungs. But when I tried to get out of bed I found my strength fail me and plummeted to the ground hitting my head on my night table. My parents found me and brought me to the hospital. 
I only found out years later when reading a list of side effects and overdose symptoms just how harmful this drug is. The word limit doesn't allow me to even scratch the surface. I will say that it has left serious physiological scars that decades later have still not healed.
I cannot deny that it did help me pay attention in class. But I would still advise any parent that loves their child to STAY CLEAR!"