I'm not sure exactly what the censored word was, but I'm guessing it meant antidepressant. The answer is yes, sperm makes you happy. Both giving it and receiving it. To quote from writer Dan Savage's latest book "American Savage": "And -- don't mean to get to graphic here but -- research has shown that semen is a natural antidepressant...and there is no shortage of that in my life either." So, if you're feeling down in the dumps and blue, go out and give a man a blow job and swallow his load. You'll feel better (and so will he).

For those not familiar with Dan Savage, he's an American columnist, pundit and writer. His weekly column can be read on-line at "savage love.com" and I recommend his books without reservation.
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I might add that Dan is an out and proud gay man.