A recent study suggests that swallowing semen on a regular basis can lower your blood pressure. Women who swallow their male mate's sperm during oral sex often have a much lower risk of getting preeclampsia — a complication during pregnancy that results in super-high blood pressure. So semen is helpful in making and birthing a baby.
So this last one's not so much a health benefit of semen, but rather the act of semen is released. The Journal of the American Medical Association reported that "high ejaculation frequency was related to decreased risk of total prostate cancer." This means that whether you do it alone or with a friend, if you're ejaculating regularly, you're lowering your chances of getting prostate cancer later in life. Suddenly the term "release your demons" takes on new meaning.
You read that right. Research that's being conducted at the Polytechnic University of Turin suggests that the DNA in semen could be used to create flame-retardant materials. Right now, they're looking specifically at DNA from herring sperm cells and finding that it converts to a "ceramic-like material when exposed to extreme heat."
The science behind it is a little intense, but simply put, the components found in the DNA could be an environmentally friendly way to protect fabric from flame. While this sounds awesome, I wouldn't go attempting the human fire extinguisher just yet.
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