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old black menA new University of Maryland-led study reveals that racism may impact aging at the cellular level. Researchers found signs of accelerated aging in African-American men who reported high levels of racial discrimination and who had internalized anti-Black attitudes. Findings from the study, which is the first to link racism-related factors and biological aging, are published in the American Journal of Preventive Medicine.

Racial disparities in health are well-documented, with African-Americans having shorter life expectancy, and a greater likelihood of suffering from aging-related illnesses at younger ages compared to whites. Accelerated aging at the biological level may be one mechanism linking racism and disease risk.

“We examined a biomarker of systemic aging, known as leukocyte telomere length,” explained Dr. David H. Chae, assistant professor of epidemiology at UMD’s School of Public Health and the study’s lead investigator. Shorter telomere length is associated with increased risk of premature death and chronic disease such as diabetes, dementia, stroke and heart disease.  “We found that the African-American men who experienced greater racial discrimination and who displayed a stronger bias against their own racial group had the shortest telomeres of those studied,” Chae explained.

Telomeres are repetitive sequences of DNA capping the ends of chromosomes, which shorten progressively over time – at a rate of approximately 50-100 base pairs annually. Telomere length is variable, shortening more rapidly under conditions of high psychosocial and physiological stress. “Telomere length may be a better indicator of biological age, which can give us insight into variations in the cumulative ‘wear and tear’ of the organism net of chronological age,” said Chae. Among African American men with stronger anti-black attitudes, investigators found that average telomere length was 140 base pairs shorter in those reporting high vs. low levels of racial discrimination; this difference may equate to 1.4 to 2.8 years chronologically.

Participants in the study were 92 African American men between 30-50 years of age. Investigators asked them about their experiences of discrimination in different domains, including work and housing, as well as in getting service at stores or restaurants, from the police, and in other public settings. They also measured racial bias using the Black-White Implicit Association Test. This test gauges unconscious attitudes and beliefs about race groups that people may be unaware of or unwilling to report.

Even after adjusting for participants’ chronological age, socioeconomic factors, and health-related characteristics, investigators found that the combination of high racial discrimination and anti-black bias was associated with shorter telomeres. On the other hand, the data revealed that racial discrimination had little relationship with telomere length among those holding pro-black attitudes. “African American men who have more positive views of their racial group may be buffered from the negative impact of racial discrimination,” explained Chae. “In contrast, those who have internalized an anti-black bias may be less able to cope with racist experiences, which may result in greater stress and shorter telomeres.”

The findings from this study are timely in light of regular media reports of racism facing African-American men. “Stop-and-frisk policies, and other forms of criminal profiling such as ‘driving or shopping while black’ are inherently stressful and have a real impact on the health of African-Americans,” said Chae. Researchers found that racial discrimination by police was most commonly reported by participants in the study, followed by discrimination in employment. In addition, African-American men are more routinely treated with less courtesy or respect, and experience other daily hassles related to racism.

Chae indicated the need for additional research to replicate findings, including larger studies that follow participants over time. “Despite the limitations of our study, we contribute to a growing body of research showing that social toxins disproportionately impacting African-American men are harmful to health,” Chae explained. “Our findings suggest that racism literally makes people old.”

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  • Tsaun

    No surprise here.

  • apple

    i’m sure any amount of hatred, stress and constant worry about something you can’t control would age anybody

  • Anthony

    Pardon my French, but getting f-d with will f-k you up. A classic example was the great Jackie Robinson who was broken down like a ninety year old man before he was 55. You cannot tell me that holding his tongue and taking shit from racists did not dramatically shorten his life. Whenever I hear some damn white sportscaster hold up Jackie Robinson as a role model for black athletes who they feel are too outspoken all I think is that taking the high road and being dignified in the face of assholes cost Jackie Robinson his life.

  • Tara

    All of this is true but black men contribute, in part, to their own misery. There are lots of black men with wealth. Instead of making other black men wealthy (like other races of men do) so that they wont have to depend on white men… they don’t. That in itself is a cause of great stress for ALL of us. Lamar Odom is giving Khloe Kardashian 7 million dollars for that divorce. He shouldn’t be giving her 7 million dollars, he should be giving that money to quite a few talented black men to start up businesses. This is the reason that black men are stressed out. They have to depend on white men for money. They have to get jobs from the white man when they shouldn’t at this point. Black men have not only failed black women and children but they have failed other black men. We have all of these wealthy black men…sorry… rich black men walking around and they don’t help each other. This is why their stress…all of our stress is ongoing….Look at Michael Strahan and all that money he had to give his ex wife. She cleaned him out. Black men complain about being the least powerful group of men on earth yet aren’t doing anything about it. A black man who is a billionaire should be investing 100,000 in 100 other black men to start businesses. All black millionaires should be doing that. Black men’s stress is because they don’t control their own destiny. They contribute to that.

    • Brad

      You do realize that, the argument you are using can be and often is used about black “people” and not just black “men”.

      Also keep in mind that racism/white supremacy will effect black men and black people whether they have money or not.

    • Tara

      You totally missed my point…

    • Anthony

      @Tara, I am not about to defend Lamar Odom’s dumb butt, but even wealthy black men who do the right thing are subject to racial stress. When a President Obama is asked for his birth certificate and called a liar while addressing Congress, stress is being added to his life that a white president will never face. When you are a black man, and you forever have to wonder if a cop is going to arrest or kill you, you are worried about some damn white woman thinking you are stalking her when you are looking for your car in the parking lot, or any number of other scenarios, this is stress for any black man regardless of income.