coffe

coffee does help with focus problems, but I'm not sure three cups are a good idea. why are you having that much coffee? it suppresses hunger, and is responsible for sleep deprivation. three cups of coffee a day might harm your nerve system, so you might consider replacing one of them with tea- which also have caffeine in it, so it helps with concentration.

Well friend, excessive of anything is bad. If you can limit it to 2 then it would be good but i think 3 is also fine. But never get addicted to it. Once if addicted then its really tough to get rid of it.