wah knn u ish really stupid leh 
contains negative feelings.
u can cross references with wikipedia or other websites.
then it will release out the negative feelings
tats why after sports u will less-stress and happy.
knn. call yourself a uni student?
university of mustafa centre si bo?
knn u need to read again la
endorphin makes u happy leh
so how can it contain -ve feeling?
and when we say release
it means it goes into ur system
not ur kind of release ok
knn
