Erection problem is not a disease. It is a state of body and mind which is not coping up with sex. The irregular 'state' can be changed. If you have good erection in your teen ages and having problem in the middle ages, you have to read further.
100% of the erection problem in middle and later ages is due to wrong life style. Medicines, viagra may give temporary improvements, but that is not natural.
You run for three kilometers. At the end of third kilometer you stopped. You breath fast, sweating more. You feel tired. You feel all your energy is exhausted. If you try to run immediately, you can not run. Your inability run again is not a disease. It is natural. You already completed 3 kilometers running. Now you need rest and energize yourself. You can not run again immediately.
Will you consider this is a disease and consult doctor? No, taking rest is enough to run again by tomorrow.
For Good Erection, it is 95% mental energy and 5% physical energy are needed. If all your mental energy is exhausted, you may have erection problem.
Consider the following thing as example:
You are busy in the end of financial year to reduce you tax. Twenty four hours you think about it, meet many consultants, worrying about the huge amount you have to pay as tax.
At the peak of your tax tension, you will completely forget a concept called sex. Even you try to have sex, you will not have good erection. Even at the time of sex, your mind will not be involved fully or obsessed with tax thoughts.
Since you are obsessed with an issue, you brain needs more energy to think. Soon you will loose all your mental energy with the problems. You do not have nothing left for sex.
More blood is flowing to brain to supply oxygen. No sufficient blood is passed to your reproductive organs to have good erection. So it is natural that you will have erection problem.
This is just an example, Instead of tax you can apply what is obsessing your mind.
Everyday, we spend log of mental energy unnecessarily with many things. Wrong job, wrong business, wrong life style, and wrong career selected, suck mental energy like anything.
Before having sex, stop thinking and stop worrying. Throw all your worldly tensions to get heavenly pleasure. It is the peace of mind makes you pierce. If you have peace of mind, you will not have erection problem.
It is all about mind game, not illness. Have a relaxed life to enjoy sex. Find out ways to increase mental energy.