( NEED HEALP ASAP 21pts ) What can cause attention deficit hyperactivity disorder (ADHD)? A. low levels of gamma-amino butyric acid B. low levels of serotonin C. low levels of endorphins D. low levels

( NEED HEALP ASAP 21pts )

What can cause attention deficit hyperactivity disorder (ADHD)?
A.
low levels of gamma-amino butyric acid
B.
low levels of serotonin
C.
low levels of endorphins
D.
low levels of acetylcholine

2 Answers

( NEED HEALP ASAP 21pts ) What can cause attention deficit hyperactivity disorder (ADHD)? A. low levels of gamma-amino butyric acid B. low levels of serotonin C. low levels of e…

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