Oh Yeah, Developmental Biology!

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Posts tagged with "sexuality"

Get Over It: Men and Women Are from the Same Planet

jtotheizzoe:

Agustín Fuentes shreds a recent paper from PLoS ONE that claims a litany of “sex differences” in trying to define “masculinity-femininity” at the SciAm guest blog:

“Sex” and “Gender” are not the same thing.  Sex is a biological state that is measure via chromosomal content and a variety of physiological and developmental measures.  Gender is the roles, expectations and perceptions that a given society has for the sexes.  Most societies have two genders on a masculinity-femininity continuum, some have more.  The two are interconnected, but not the same thing.  We are born with a sex, but acquire gender and there is great inter-individual diversity within societies and sexes in regards to how sex and gender play out in behavior and personality.

Check out the post for more. Plenty of mention on where the body of literature stands on the development of gender vs. sex.

Can the biology of being gay combat bigotry?

Simon LeVay’s theory of homosexuality in Gay, Straight, and the Reason Why nicely balances solid science and common sense

Deborah Blum, contirbutor

IN THE summer of 1991, neuroscientist Simon LeVay published a paper that would make him famous. It reported a study that clearly demonstrated a structural difference between the brains of gay and straight men. For nearly two decades since, LeVay has been in pursuit of more evidence to support the study’s core implication: that sexual orientation derives from biology, not from personal choice.

Read more

Clue to sexual attraction found in lesbian brain.

Lesbian and heterosexual women respond differently to specific human odours, a brain-scanning study has found. The homosexual women showed similar brain activity to heterosexual men when they inhaled certain chemicals, which may be pheromones, the researchers say.

Jun 5

Gene switches sexual desires of female mice

A GENE has been discovered that appears to dictate the sexual preferences of female mice. Delete the gene and the modified mice reject the advances of the males and attempt to mate with other females instead.

While it is impossible to say whether the finding has any relevance for human sexuality, it provides a clue as to how sexuality develops in mammals.

Gay men 'report higher cancer rate than straight men'

I just wanted to point this article out and in particular draw attention to the line -Cancer Research UK said more research was needed as the reasons for any difference were unclear.

Just so people don’t go into mass panic, being gay/lesbian/straight/bi/anything else you want to be DOES NOT cause cancer.

Homosexual men are more likely to have had cancer than heterosexual men, as US study has suggested.

The study of more than 120,000 people in California has led to calls for more specialist support.

Lesbians and bisexual women also had poorer health after cancer than heterosexuals, according to research published in the journal Cancer.

Cancer Research UK said more research was needed as the reasons for any difference were unclear.

No sex please: An asexual life

"At 21, Andy Holland is happy, easy-going and interested in the same things as most university students. With one notable exception: Holland is not attracted to women, or to men. In fact, he has no desire to have sex. And in this, he is not as unusual as we might assume"

"With sex being arguably the world’s favourite pastime, asexuals face an uphill struggle for recognition. It’s a testament to how sexualised our society is, that we accept almost any sort of sexual predilection, but when it comes to someone getting no sexual kicks at all, we’re at a loss as to how to understand it. We find it perfectly believable – if a little odd – that someone might want to have sex while wearing an asphyxiating latex mask, or while being whipped or spanked. But the idea that someone should deviate so far from the norm as to not want sex at all is almost incomprehensible. Most of us instinctively feel that there must be some sort of mental or physical problem, something that could be cured. We want to know why they’re like this"