Should a normal man's penis become erect for a certain number of times throughout one day (without any external stimulus)? Or, do these erections occur only while a man is sleeping? I have been masturbating once every day or every other day, and I have noticed that I rarely get any of those spontaneous erections during the day at all. Plus, I have been waking up with no morning erection during the past week. Have I been masturbating too much?

I have a somewhat embarrassing question. Is there anything specific I can do in my diet or anything to where my PMS bleeding flow isn't so heavy? It has been so heavy that at times, I put a tampon in and in a matter of like 20 min, I have to change in the beginning of my cycle. I also have had it leak into my clothing. This can be quite embarrassing. Any help would be appreciated.

My boyfriend has trouble ejaculating, usually taking a long time. I was wondering if it could have to do with his constant masturbation during most of his young life. Could it be that the problem is me? Is there a possibility that we can improve the situation?

Is it possible for nonpregnant women or women who have never been pregnant to lactate? If so, what would be the best way to stimulate in a safe, healthy way? I'd love to please my new husband with this. Are there any draw backs?

I have been on the Nuvaring for three months now, and I am keeping it in for the four weeks then changing it because my doctor said there's no need for me to have a period. About two weeks ago I started having dark brown discharge and it has gotten more heavy, but only when I run or stand up real quick. Is this normal or should I call my doctor and find out what is going on?

I was wondering if interval training could improve my ability to achieve multiple orgasms in one night. I had a friend who said he masturbated two times a day for three weeks, three times a day for another three weeks, four times a day for three weeks, and so on. He said this improved his stamina. I want to increase my output of semen as well. Any thoughts?

What is oxytocin and does your body produce it during masturbation? I heard you can buy it, but if you do, does that mean you are going to start producing milk at random times for women?

How long to wait for sex after a miscarriage? What if you already had sex too soon after a miscarriage? What will happen if you did?