I swear these stories are finding me and not vice versa.

From the “recent studies suggest” department, we learn that sex is not only beneficial in lowering stress…

Volunteers who had sexual intercourse were the least stressed and had blood pressure levels that returned to normal more quickly than people who engaged in other types of sex. But people who had abstained from sex had the highest blood pressure response to stress.

…but also gives vitamin C a run for its money in boosting the ol’ immune system:

Swiss scientist Manfred Schedlovski claims his experiments show that regular love-making increases the amount of phagocyte cells, which boost the body’s immune system and fight the microbes that cause colds.

He claims the number of phagocytes - which attack alien antibodies, causing them to self-destruct - significantly increases during sexual intercourse.
And according to Schedlovski’s research, the number of phagocyte cells can even double after an orgasm, allowing alien microbes to be detected and destroyed more quickly.

Somehow, I don’t think these two tidbits will be added to any Sex Ed curriculums anytime soon.
Not to mention all these.