1. MALE SPERM CAN LIVE UP TO 5 DAYS
Male sperm is surprisingly resilient. Sperm inside a woman’s vagina can live in her cervical mucus or upper genital tract for 3-5 days. Provided the sperm remains alive, it may even be able to fertilise the egg, too. Sperm ejaculated outside the body is less tough – it can survive up to a few hours.
2. SOMETIMES SEX IS A MATTER OF LIFE AND DEATH
If a female ferret doesn’t mate while she’s in heat, she can die! If she’s unable to find a sex partner and stays in heat too long, her body will start to secrete high levels of estrogen, which causes aplastic anemia – a deadly disease for ferrets.
3. A MAN PRODUCES A MIND-BOGGLING AMOUNT OF SPERM
There’s plenty of male sperm to go around. And we mean plenty: One single guy produces enough sperm in two weeks to impregnate every fertile woman on the planet. (Wonder if Ryan Gosling knows this?)
4. SEX CAN INCREASE YOUR PAIN THRESHOLD
Apparently the Divinyls were right – there is a fine line between pleasure and pain – at least during sex, that is. According to a study published in the Journal of Sex Research, when you’re aroused your pain threshold can increase significantly. It’s even better if you reach the big O – orgasms have been known to block pain by releasing a hormone which elevates your pain threshold.
5. SEMEN CAN BE USED AS UM, INVISIBLE INK
During World War I, members of the British Secret Intelligence Service (MI6) discovered you could use semen as invisible ink. Apparently, it didn’t react withiodine vapour (the main method used to detect invisible ink) and, as a bonus, it was also readily available. They stopped using it once they realised that it began to smell if it wasn’t, uh, fresh. Disturbing, but true!
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