Since orgasms cause a release of endorphins into one's cerebral-spinal fluid and endorphins are also somewhat responsible for the emotion of happiness, etc., is it possible that excessive masturbation and/or intercourse would lead to a depleted level of endorphins in the system that could in turn cause one's affect to become somewhat "flat"? Could a sustained low level of endorphins in the system induce depression and/or mood disorder?

I'm sending you this message from the top of the Sierra Nevada mountains of California. My wife just experienced her best orgasm ever. We live by the beach, a very low altitude... so that made me wonder, although crazy, "Does altitude have any impact on sex?"

If it doesn't impact sex, it definately impacts the lube bottle as it came squirting out on it's own...

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?

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?

1) I have trouble getting an erection after ejaculating. I wait 10-20 minutes, but it doesn't get too hard. It sometimes annoys my girlfriend. Is there anything I can do besides waiting till the next day?

2) Are there methods through which men can regain their erection quickly following orgasm?

3) I'm not really sure how to ask this question, so I'll try my best. I know that there is a certain period of time in which a man has to "recharge" after he cums. And I was wondering what the time period is before a man is "fully loaded" again, if there is any at all. Sincerely,

Hi! I have a question about orgasms. I'm a female who has masturbated since her early teens and wonder if I've "overdone" it somewhat. I did it so frequently (sometimes every other day or so; sometimes I waited longer) that now that I'm in my early 20s, I find it harder to reach orgasm, and harder to have multiple orgasms (it used to come so easily to me). Have I "lost" that momentum? Can I regain it if, say, I stopped masturbating for several weeks or months?

Also, my partner stimulates me manually or with his tongue, and I haven't been able to "come" yet... is it because I've masturbated too much? Do women take longer to come? I think he gets bored doing it...