Human genomes are 99.9 percent identical—with one prominent exception. Instead of a matching pair of X chromosomes, men carry a single X, coupled with a tiny chromosome called the Y. Tracking the emergence of a new and distinctive way of thinking about sex represented by the unalterable, simple, and visually compelling binary of the X and Y chromosomes, my book, Sex Itself: The Search for Male and Female in the Human Genome, examines the interaction between cultural gender norms and genetic theories of sex from the beginning of the 20th century to the present, postgenomic age. Here, we've excerpted from the chapter "Save the Males!"
The prospect that [...]
Researchers from the University of Montreal are getting to the bottom of the perverse I-just-wanna-eat-you-up reaction we hormonal wrecks sometimes feel in the presence of babies. From the CS Monitor:
Apparently it has something to do with the way babies smell. A paper published in the current issue of Frontiers in Psychology describes how researchers in Dresden, Germany, imaged the brains of two groups of 15 women while the women sampled the odors of other parents' newborns. One group was composed of women who had given birth within the past six weeks. The other group was made up of women who had never given birth. The scientists collected [...]
The Wall Street Journal starts with a shocker:
Eating so-called comfort foods with large amounts of fat and sugar has been shown to vastly improve people's moods.
And then goes on to say:
A report in the Journal of Behavioral and Brain Science suggests that drawing pictures of unhealthy food can also have positive effects on mood.
Oh really! Here is how this knowledge rained down. In a very small study, researchers in upstate New York took 61 mostly "slightly overweight" college students and had them draw, not literally on an empty stomach but while in a state of relative hunger, pictures of four specific things: pizza (high-fat, low-sugar), cupcakes (high-fat, [...]