According to Archives of Sexual Behavior, oral sex is good for women's health and makes them feel happier.

From the study's findings, men, we have the magic seed. Our semen has the effect of "mood-altering chemicals". The State University of New York ran this experiment as a survey, as opposed to practical application, so we can only assume that their findings were accurate. (We wouldn't want to harm any kitty's in a study).

The sex lives of 293 women were compared to their state of mental health. Seems as though the women who ingested seminal fluid had increased mood, affection, slept better and were happier. The reason for this, semen contains chemicals that increase all of those areas in the same manner as anti-depressants.

Note to all who prefer bareback, research shows that women who have regular unprotected sex are less depressed and perform better on cognitive tests. (That study does not specify if that was with one or multiple partners)

Recall, we mentioned that semen has mood-altering chemicals, it contains other chemicals along with spermatozoa; when researchers have looked closer at semen, they found cortisol. For those not in the know, cortisol is known to increase affection. It also contains estrone, which elevates mood and oxytocin, which also elevates mood, the Daily Mail reported.

But wait, there is more to how good your goo is, semen also contains thyrotropin-releasing hormone (another antidepressant), melatonin (a sleep-inducing agent), and even serotonin (perhaps the best-known antidepressant neurotransmitter).

When you put all these ingredients, you have a cocktail of mind-altering "drugs", all of which are found in human semen.

Researchers Gallup and Burch, along with the psychologist Steven Platek, hypothesised that women having unprotected sex should be less depressed than suitable control participants.

While the research didn't observe any practical applications, the study was of people who had recent sexual activity without condoms. This was used as an indirect measure of seminal plasma circulating in the woman's body.

Each participant also completed the Beck Depression Inventory, a commonly used clinical measure of depressive symptoms.

The most significant findings from this study were that, even after adjusting for frequency of sexual intercourse, women who engaged in sex and "never" used condoms showed significantly fewer depressive symptoms than did those who "usually" or "always" used condoms.

The study also found that women who abstained from sex had more depressive symptoms than those women who were self-described as "promiscuous".

All said, the the research suggests it is not just that women who are having sex are simply happier, it is the women who go bareback that are happiest.