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Does Stress Cause Black Girls to be Overweight?

Does Stress Cause Black Girls to be Overweight?A new study hypothesizes that the detrimental effects of chronic stress may have an ethnic bias.

UCLA researchers believe that experiencing high levels of stress (for a decade or more), influences body weight increases in both black and white girls.

However, the experience of chronic stress appears to have a greater negative effect on black girls’ weight, which may explain racial disparities in obesity levels, said lead author Dr. A. J. Tomiyama.

Tomiyama and team looked at whether the experience of chronic stress in young girls over a 10-year period might have an effect on Body Mass Index (BMI), a measure of obesity. They also assessed if this effect might be different in white and black teenage girls.

In the U.S., the prevalence of obesity in black populations is 50 percent higher than in whites. This difference is found even in childhood, especially among female adolescents. In addition to the stress associated with obesity, ethnic minorities may experience stress related to perceived racial discrimination.

Researchers used data from the National Heart, Lung and Blood Institute’s (NHLBI) Growth and Health Study, to determine the prevalence of obesity in 2,379 black and white girls beginning at age 10. They then followed the girls for 10 years, evaluating weight and their experience of psychological stress over that time.

Over 10 years, more black girls were overweight or obese than white girls, who reported more stress than black girls.

In addition, levels of chronic stress predicted greater weight in both groups. Even though black girls reported less stress overall, the effect of chronic stress on weight was stronger for these girls with one unit increase in stress leading to 0.8 BMI unit increase every two years.

Comparatively, one unit of stress led to 0.55 BMI unit increase in white girls.

The authors conclude: “Our study documents a relationship between chronic perceived stress and BMI over a decade of growth in black and white girls. However, the relationship between perceived stress and BMI is stronger in black girls.”

Researchers said psychological stress may lead to weight gain in a variety of ways. Directly, stress may cause people to eat more and have lower levels of physical activity. Stress may also activate biological stress mediators such as cortisol which can cause weight gains.

Researchers believe stress may be fueling the obesity epidemic among young children and adolescents. Minorities may have significant challenges as they battle stress-induced obesity as well as stress associated with racial discrimination.

The study is published online in the journal Annals of Behavioral Medicine.

Source: Springer

Does Stress Cause Black Girls to be Overweight?

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2015). Does Stress Cause Black Girls to be Overweight?. Psych Central. Retrieved on June 24, 2018, from https://psychcentral.com/news/2012/09/21/does-stress-cause-black-girls-to-be-overweight/44952.html

 

Scientifically Reviewed
Last updated: 6 Oct 2015
Last reviewed: By John M. Grohol, Psy.D. on 6 Oct 2015
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