Your gonna need to put some answer choices boo <3 I will answer in the commnents when or if u do
Um...because someone put to much caffeine XD or a human does not need a lot of caffeine and coffee has more than needed
How you need to remember the answer by writing it down
Mental disorder im pretty sure
Substance abuse such as drugs, alcohol and tobacco, family problems such as domestic violence and abuse, social problems such as peer pressure, bullying, and exclusion, and so many other environmental reasons, but substance abuse, family dysfunction and social problems are the common reasons why.