Chemicals In the Brain... Posted: 02-22-06 19:33pm
Actually, all physiological responses are
due to "chemicals" like acetylcholine (a
neurotransmitter) in the nervous system
triggering receptors of the neurons to
send a "signal" to the part of the body to
make it work.
When your neural receptors are innundated
with neurotransmitters, the neurons adapt
by removing or altering the receptors.
(this is how physical addiction works..
Nicotine receptors for instance tend to
diminish when you smoke, causing you need
to smoke more and more to get the same
feeling or neural reaction.)
hence, because you were looking at porn
excessively and causing those neurons to
be bombarded with neurotransmitters, you
probably don't have enough receptors left
on your neural pathways to stimulate an
action potential and signal the tissues of
the penis to get erect. This does work in
reverse, however. So relax and stop
thinking about sex (easier said than done)
for a while, and while they are starving
for neurotransmitters your neurons will
develop new receptors so that message can
reach your penis.
That said, there is also some psychology
that plays a big part in sexuality as
well.
I'm not a medical doctor, but I am a
graduate student in human physiology.
This is all pretty much first year
stuff... Go to wikipedia or just google
and look up action potential and
neurotransmitters for more info.
