Category Archives: Sex Differences

“After I started taking testosterone, I became interested in science… “

Can Testosterone Really do That? Normal testosterone levels for men: 300 to 1000 ng/dl Normal testosterone levels for women: 30 to 95 ng/dl From the Archives of “This American Life” Radio Show: Testosterone Gives a Man a Mind to Think … Continue reading

Posted in Biomedicine, Sex Differences, Testosterone | Tagged | 4 Comments

Half Your Brain Tied Behind Your Back

The following article was previously published on The Dangerous Child blog Unihemispheric Sleep; Unihemispheric Waking Whales and dolphins live underwater but must come to the surface periodically to breathe. They cannot allow both hemispheres of their brains to drop into … Continue reading

Posted in Cognition, Human Brain, Sex Differences, Situational Awareness | Tagged | 2 Comments

Testosterone: King of Hormones

It’s been well established that men perform better than women when it comes to specific spatial tasks. But how much of that is linked to sex hormones versus cultural conditioning and other factors? __ SD Testosterone Helps One to Quickly … Continue reading

Posted in Genetics and Gene Expression, Human Brain, IQ, Sex Differences, Testosterone | Tagged , | 1 Comment

Human Brain — The Undiscovered Country

[One] region of the brain that is masculinized during development is the amygdala, which in addition to its roles in the processing of emotions is a key region regulating social play behavior by juveniles, sometimes called rough-and-tumble play, which differs … Continue reading

Posted in Cognition, Connectome, Creativity, Dysgenics, Human Brain, IQ, Machine Intelligence, Science, Sex Differences | Tagged , | 3 Comments

Bigger Brains & IQ; Sex-Related Differences in Emotional Regulation

The fact that brain size correlates with intelligence between species, is fairly uncontroversial. We expect chimps to be more intelligent than monkeys, and humans to be more intelligent than chimps. It is only when we start looking at comparisons of … Continue reading

Posted in Cognition, Genetics and Gene Expression, Human Brain, IQ, Sex Differences | Tagged

Destiny and the Gendered Brain

Intelligent and observant individuals have noticed general male-female differences in behavior and decision-making for many thousands of years. Now scientists have the tools that allow them to map out the brain differences in detail, and demonstrate how different chromosomes lead … Continue reading

Posted in Genetics and Gene Expression, Human Brain, Sex Differences

Big Surprise! Gender Gap in Physics (and Math) Persists

No matter how hard feminist “scholars” try to explain away the gender gap in high level math and physics aptitude, the underlying reality will not go away. In a new synthesis of past work, researchers found that women consistently score … Continue reading

Posted in Cognition, Human Brain, Learning Theory, Sex Differences, Testosterone | Tagged | 2 Comments