Research/ Study

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'Neuroenhancement of Love and Marriage: The Chemicals Between Us'

love pillHere's an intriguing piece by some Oxford academics, Julian Savulescu and Anders Sandberg. Although we think trying to use pills to keep couples together would be extremely unwise, we understand that there don't seem to be many options once one really sees the human dilemma clearly...especially if one is convinced that 'sexual satiation equals wellbeing.' We can't help wondering if these authors would trumpet the ethics of changing behavior to increase the chances of remaining in love with as much gusto as they recommend popping theoretical mating pills with risky outcomes.

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The more orgasms, the less attractive women find men

annoyed woman with crossed armsLast year a sexologist did research on women engaging in various kinds of sexual activity for 30 days - and tested them to see how attractive and friendly they found (unknown) men's pictures. He was trying to prove that women engaging in PVI (penile-vaginal intercourse) would find pictures of strange men less attractive than the other women did, because they would be more bonded with their mates.

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Neural Systems for Reinforcing Behavior

Professor Bart Hoebel

Case Study - Why Do we Work

Description of the work of Princeton professor, Bartley Hoebel

[Elsewhere Hoebel has said, "Highly palatable foods and highly potent sexual stimuli are the only stimuli capable of activating the dopamine system with anywhere near the potency of addictive drugs."]

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Dominant males' pheromones stimulate brains of females

Male pheromone–stimulated neurogenesis in the adult female brain: possible role in mating behavior

alpha male
[This could help explain why women choose "Don Juans" who are otherwise dismal as mates.]

The regulation of female reproductive behaviors may involve memories of male pheromone signatures, formed in part by neural circuitry involving the olfactory bulb and hippocampus.

Promiscuity breeds better babies, study shows

AntechinusThere is ancient lore to the effect that learning to make love without orgasm is protective of health. Here's some research showing that too much fertilization-driven sex can suppress the immune system.

Males of the species Antechinus stuartii are "overtly preoccupied with copulation and die abruptly at the conclusion of the mating season."

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Cupid's Poisoned Arrow


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Prolactin: An integral player in hormonal politics

By Jeremy P.W. Heaton, MD

Prolactin's close relationship to other hormones and neurotransmitters vital to sex, life, and aging merits review. Although prolactin hypersecretion occurs infrequently, its recognition provides an opportunity to treat a fundamental cause of sexual problems.

What is interesting about prolactin (PRL)? Most urologists know it only as a bit player in the androgen and erectile dysfunction (ED) arena. It is considered problematic (should the PRL levels be routinely measured in men with ED?) and is usually associated with alterations in desire or libido (although this is more legend than fact). We are inclined to forget that PRL plays similar but mirror image roles in female reproductive medicine, with the addition of eponymous roles in lactation.

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Oxytocin counters cravings for sweets

healthy hugOne day while in a retreat center snack bar I heard a woman say, "Brendan, you give such great hugs that we should just put you by the chocolate section. That way, whenever we get chocolate cravings we can just get a hug from you instead!" She may have been on to something scientifically valid.

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