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yes it definately can remember impotence is almost always in the mind try to do things to relax before you have sex dont just rush straight in this should help.

NOPE!!!

Nerves are responsible for a lot of stuff.

In a word: yes.

yes, emphatically, yes!

Yes I think. well he may just not be relaxed enough to feel aroused

yes, thats probably the biggest factor

stress kills - both erections and people.

people need to learn to destress their lives so they ccan relax and enjoy more erections along with longer lives.

when Im nervous, I still feel important

It sure can!

One thing you've got to understand is that we poor males can not consciously trigger erections, it's automatic and under the control of a primitive part of the nervous system in the spine. You have to feel relaxed/excited and in the mood and then it happens as if by magic as the sympathetic nervous system votes in favor of having an erection. As we can't control this it can happen at inconvenient times or simply fail on you when you need it most.

Hope that helps.

Yes it can. Your body responds automatically but ultimately your brain controls your body and if you nervous system is under pressure due to your emotional state, it can cause you not to have an erection.