Trump Administration’s Definitions of Sex Defy Science

The government wants to limit a person’s sex to male or female as determined by genitalia at birth and genetics. It’s not so simple, say scientists.

Written byAshley P. Taylor
| 2 min read

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According to a leaked memo from the Department of Health and Human Services, President Donald Trump’s administration wants to legally define sex as “either male or female, unchangeable, and determined by the genitals that a person is born with,” The New York Times reports, adding that disputes about sex would be resolved through genetic testing. Many people are concerned this policy could be used to roll back civil rights protections for transgender and nonbinary individuals and would, the Times reports, “essentially eradicate federal recognition of the estimated 1.4 million Americans who have opted to recognize themselves—surgically or otherwise—as a gender other than the one they were born into.”

In addition, some scientists say the guidelines disregard science.

“This proposed change pushes pseudoscience,” Kathleen Rest, executive director of the Union of Concerned Scientists, says in a statement. “It’s baseless and wrong for [Health and Human Services] to ...

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