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The human brain. Differences in male and female brain size are relative to body size. [83] Early research into the differences between male and female brains showed that male brains are, on average, larger than female brains. This research was frequently cited to support the assertion that women are less intelligent than men.
However, women can also build muscle mass by increasing the testosterone level naturally. [25] Prominent muscles of the body include the latissimus dorsi and trapezius in the back, pectoral muscles and rectus abdominis (abdomen) in the chest and stomach respectively, as well as biceps and triceps in the arms and gluteus maximus , quadriceps and ...
Sex differences in social capital are differences between men and women in their ability to coordinate actions and achieve their aims through trust, norms and networks. [52] Social capital is often seen as the missing link in development; as social networks facilitate access to resources and protect the commons, while cooperation makes markets ...
Racial and ethnic demographics of the United States in percentage of the population. The United States census enumerated Whites and Blacks since 1790, Asians and Native Americans since 1860 (though all Native Americans in the U.S. were not enumerated until 1890), "some other race" since 1950, and "two or more races" since 2000. [2]
Though statistically there are sex differences in white matter and gray matter percentage, this ratio is directly related to brain size, and some [22] argue these sex differences in gray and white matter percentage are caused by the average size difference between men and women. Others argue that these differences partly remain after ...
The biggest differences between men and women in these disorders were found on the agoraphobic symptoms of "going out of the house alone" and "being alone", and on two simple phobic symptoms, involving the fear of "any harmless or dangerous animal" and "storms", with relatively more women having both phobias.
The Texas Triangle, formed by Houston, Dallas-Fort Worth, and San Antonio, is an interstate corridor between the three major Texan cities closest to the geographic center, each representing distinct cultural areas. Texas is bordered by the western prairies, the Deep South, and Mexico, incorporating Hispanic, African, and Anglo traditions.
The U.S. Census recognizes the difference between the terms sex and gender, the fact they are often confused or used interchangeably, and may differ across cultures and time, and explains that what the census attempts to measure, is "the sex composition of the population". [85]