emotions

i am reading my pshychology textbook
i find that emotions have amazing magical powers
it is hard to believe that there are so many significant theories and explanations about emotions

the most surprising thing i get
is that
emotions are seperated into two totally different types
1.approach emotions
such as happiness, joy, love
they are all positive
2.withdrawl emotions
such as hate, disgust, fear
they are negative
and the interesting thing is that
when we have more approach emotions
our left frontal lobe will be more active than the right one at that moment
in contrast
our right frontal lobe will be energectic when we have withdrawl emotions

we can prove this by scanning the patients who have mental problems
the evidence shows that their right frontal lobes are more active than formal people

it is really cool to find this fascinating things
it seems that emotions are common
and they exist in our daily life
but if i don't read the article
i would never know this profound secret