I am finding it more difficult to keep my erection hard ?

I am a 36 year old man.

Over months my erection as become very difficult to maintain and although i can have intercourse it is difficult to keep my penis hard. I have to contract my muscles to keep forcing my penis to stay hard which sometimes makes me ejaculate very quickly. This is also spoiling my enjoyment and i feel my wife is getting dissatisfied as my penis just isnt as hard as it should be.

Can you help ?

try masturbating!

Try getting your cholesterol levels checked. I'm talking all of them. Don't just settle with an over all score, tell the doctor you want to find out what your LDL (lousy) levels are as well as the HDL (happy) levels are. I just found out that my LDL levels are too high, and the good cholesterol levels, HDL aren't high enough. Think about it, if the cholesterol is effecting veins and arteries throughout the body, what exempts the penis' veins running through it? Clearer or plaqued arteries and veins affect the "entire" body.

we need help too what did you do sincrerely yours HELP