From Wikipedia:

Before the mid-20th century, scientific racism was accepted throughout the scientific community, but it is no longer considered scientific. The division of humankind into biologically separate groups, along with the assignment of particular physical and mental characteristics to these groups through constructing and applying corresponding explanatory models, is referred to as racialism, racial realism, race realism, or race science by those who support these ideas. Modern scientific consensus rejects this view as being irreconcilable with modern genetic research.

Scientific racism misapplies, misconstrues, or distorts anthropology (notably physical anthropology), craniometry, evolutionary biology, and other disciplines or pseudo-disciplines through proposing anthropological typologies to classify human populations into physically discrete human races, some of which might be asserted to be superior or inferior to others.

From the article:

African Americans have a long history of mistrust in the medical system, rooted in legacies of abuse and mistreatment, including unethical experiments on Black people. Examples include the Tuskegee syphilis study, the gynecology malpractice of J Marion Sims on enslaved Black women and the exploitation of Henrietta Lacks for cancer treatment, all which violated the principles of research ethics. The basis of these events stemmed from exploitation upheld by the idea that race is biological. In 2003, the Human Genome Project found that there is no genetic basis for race and that the term “race” is not biologically meaningful, meaning statements like Kennedy’s are not only outdated, but also false.

Throughout history, two enduring physiological myths – that Black people have a higher pain tolerance and weak lungs that could be strengthened through hard labor – have circulated within the medical community and continue to influence modern medical education and practice. Research has shown that many American physicians, medical students and residents hold incorrect beliefs about biological differences between races, which contribute to racial bias and disparities in pain perception and treatment recommendations. A 2016 survey revealed that of 222 white American medical students and residents, nearly 60% thought Black people’s skin is thicker than white peoples, and 12% thought Black people’s nerve endings were less sensitive than those of white people. Neither is true.

“Spreading false rhetoric that Black people have stronger immune systems recalls this notion of a super-humanization bias, which claims that Black people’s bodies function and endure pain differently,” said Zoé Samudzi, a visiting assistant professor at Clark University. Samudzi, who holds a PhD in medical sociology, fears the rise in misinformation will roll back recent progress across health fields. “Race-based medicine should not be the means of addressing the disparities in health outcomes that fall on the lines of race,” she said.

Not at all what the article or Wikipedia is referring to, but you do you.