The Daddy Chronicles II: Parenting Boosts Immune Function

I've been doing this whole parenting thing for almost three months now and it has been simultaneously gratifying, terrifying, exhausting, and fascinating. One thing I haven't been doing is sleeping, and because of this I have had a lot of time to read up on some neat research on new parents. Last time I wrote about how parenting reduces Testosterone in men. Today I blog about the relationship between parenting and immune function.

Can parenting boost the immune system?

Tabula Rasa: Do genes influence personality?

wikipedia.org

If I were to ask you the simple question, "Do you think that genes influence your personality?" The first thing you might think, is that I'm asking you a stupid question. After all, nearly all our lay beliefs about the world include beliefs that some of our genetic material influences who we become as people. And though we do believe, to varying degrees, that our experiences shape who are, I'm sure we can't think of all that many people who believe, like Aristotle, that we are a tabula rasa (blank slate). As well, if you believe in evolution then you must have an implicit belief that genes influence who we are. If evolution has taught us anything, it is that survival means passing on the fittest of our genes to the next generation.

So, you come to PYM today with the implicit belief that your personality is most certainly influenced by your genes. What if I told that this is not what the most recent research in behavioral genetics would suggest?

Friday Fun: Oxytocin and the Zombie Apocalypse

I got your oxytocin right here! (source)

If you've been watching AMC's riveting series about zombie apocalypse, the Walking Dead, then you're probably into blood and guts like me. You might also be watching because you're interested in the moral dilemmas that the characters face during each twist and turn of fate. As the misfortune adds up and the body count rises, some of the most honest and trustworthy people must do some pretty terrible things all in the name of survival! That makes for some pretty great television.

When I was watching the opening to season 3 this week, I couldn't help but think about how much the zombie apocalypse genre of television and cinema can teach us about oxytocin. That's right, we can learn more about the mislabeled "cuddle hormone" by thinking about both the benevolent and terrible things that people do in the name of survival.

A Gene for Empathy?

We hope you had a great Thanksgiving yesterday, I know I ate more than my share of pumpkin pie and apple pie! 

Today, we have another awesome guest post by a new guest blogger, Alex Kogan. Alex is a postdoctoral scholar at the University of Toronto, Mississauga and he agreed to write a post about a recent article he had published that has received a lot of media attention (see here, here, here and here for just a few examples). 

A gene for empathy?

Last week, my colleagues and I reported a seemingly startling finding: People who had two copies of G version of the oxytocin receptor gene were seen as more trustworthy, compassionate, and kind by complete strangers on the basis of only 20 seconds than people who had at least one copy of the A version of the gene. Oxytocin is a neuropeptide—a chemical messenger of sorts—in our brains that has been linked to empathy, sacrifice, and trust. Oxytocin has also been linked more recently to darker aspects of human nature as well, such as jealousy and boasting, suggesting that the role of oxytocin is much more general than simply a “love” messenger. The way oxytocin operates is through the usage of a specific receptor in the brain—and the oxytocin receptor gene, as the name would suggest, codes for this receptor. Our study built on roughly a dozen studies that have shown a similar effect in terms of how people view themselves. Media reports on our study triumphantly reported that the “empathy gene”, “cuddle gene”, or the “jerk gene” had been found. Science had unlocked the genetics behind kindness.

Or had it?

Women better at judging men’s sexual orientation near to ovulation

source

Living in the San Francisco Bay Area provides many benefits: good food, great activities, incredible landscape. For me, however, the Bay Area is SOO special, because it caters to a fabulously diverse array of residents. For example, each year San Franciscans can take to the streets to herald in spring during the Cherry Blossom Festival in Japantown, celebrate the beauty of leather during Folsom Street Fair, or stomp their feet and slap their thighs to the music at the completely free – Hardly, Strictly, Bluegrass. The variety of interests, cultures, traditions, and values in the Bay Area is a beautiful thing.

One interesting result of this diversity is that single, female San Franciscans are not often surprised when a man they’ve been eyeing all night, leaves the bar, with his boyfriend, not his girlfriend. San Francisco is, after all, home to The Castro - one of America’s first and arguably the best known, gay neighborhoods. Perhaps over the years women in San Franscisco have become especially adept at judging who is straight from who is gay (or who falls somewhere along the continuum). Interestingly, however, recent research has shown that women’s accuracy in judging male sexual orientation does fluctuate. Not by city (though someone should do that study) but instead by fertility (ability to conceive) across the menstrual cycle. Here’s the study…

The Sleep Cycle: What's really going on while you're catching your zzz's

Today I continue on my new quest to understand sleep and its role in our lives by attempting to answer a very basic question: what happens when our heads hit the pillow at night?

The 90 minute Sleep Cycle

The sleep cycle: A sleep cycle lasts about 90 minutes and during that time we move through five stages of sleep. The first four stages make up our non-rapid eye movement (NREM) sleep, and the fifth stage is when rapid eye movement (REM) sleep occurs.

Does marriage matter? Testosterone says no

Source

Last weekend I went back to my hometown for the wedding of my childhood best friend. June is the height of wedding season and there was definitely a frenzy in the air as people prepared for their big day. So during this time, it seems only right to ask… does marriage matter?

Our society certainly seems to think so. As young girls, my best friend and I used to dress up in her mom’s dresses and “play wedding.” In early elementary school we had imaginary husbands. In high school we looked at bridal magazines and talked about when we would meet our future husbands. In college we had conversations about how we would know when we'd met "the one." And its not just us… close relationships research historically focused on the marital relationship, the political world is in upheaval over the meaning of marriage, tabloids make their money by filling their magazines with celebrity weddings (and divorces), and Beyonce let all the guys know “if you liked it then you shoulda put a ring on it.”