Stress and Trauma in Childhood Linked to Obesity—But One Factor Can Help

Children who experience trauma, abuse, divorce, or financial hardship are significantly more likely to develop obesity, according to new research from the University of Georgia. The study analyzed data from more than 5,400 children ages 11 and 12 and found that three out of four youth reported at least one adverse childhood experience—a number much higher than researchers anticipated.

How Do Adverse Experiences Lead to Weight Gain?

The connection between childhood stress and obesity isn't just about emotional eating. "These stressors can change the body, biologically and hormonally, in ways that can keep increasing weight gain risk," explains Shana Adise, an assistant professor in the University of Georgia College of Family and Consumer Sciences and corresponding author of the study published in JAMA Network Open.

When children experience stress, their bodies respond in ways that make weight gain more likely. The research found that for every increase of about two adverse experiences, children showed a nearly half-point increase in body mass index (BMI)—a measure of weight relative to height. Beyond the biological response, stress also changes eating behavior. "When you are stressed out, you may want to eat that piece of cake because it makes you feel better," Adise said. "However, there is also a biological mechanism that is driving this behavior. For example, stress causes you to eat more, especially more calorically dense foods".

Which Children Face the Greatest Risk?

The study revealed significant disparities in how adverse experiences affect different populations. About one in two Hispanic youth could be classified as overweight or obese, compared to about 30% of their non-Hispanic peers. More than 83% of Hispanic youth reported experiencing at least one adverse childhood experience, compared to about 72% of non-Hispanic children.

Meanwhile, a separate analysis of electronic health records from more than 6 million children across the United States found alarming obesity rates overall:

• Ages 2-5: 26.9% of children were overweight or obese
• Ages 12-19: 38.5% of adolescents were overweight or obese
• Overall: 19.8% of youth ages 2-19 had obesity, with 9.2% experiencing severe obesity

What Protective Factors Can Help?

The most encouraging finding from the University of Georgia research is that not all children who experience adversity develop obesity. For Hispanic youth specifically, two protective factors significantly reduced the negative health impacts of adverse experiences: having healthy coping skills and receiving support from at least one caring adult.

"Hispanic children who had greater healthy coping skills, such as problem solving, or who said they had at least one caring adult in their lives had lower BMIs, even if they experienced high levels of adversity," the researchers found. Importantly, this caring adult doesn't have to be a parent or caregiver living in the home. "Whether it's a teacher, a coach or someone else, this can have a really big impact on how a kid does when they just have at least one supportive, stable adult who's there," explained Dr. Victoria Goldman, lead author of the study and a fellow in pediatric endocrinology at Children's Hospital Los Angeles.

Steps to Identify and Support At-Risk Children

Pediatricians and healthcare providers now have tools to identify children at risk early and intervene before obesity develops. The research suggests a practical approach that clinicians can implement during routine check-ups:

• Screen for adverse experiences: Use a simple questionnaire during pediatric physicals to ask children about stressful or traumatic events they've experienced, such as abuse, divorce, bullying, or financial hardship
• Assess coping skills and support: Evaluate whether the child has developed healthy coping strategies like problem-solving and whether they have at least one caring, stable adult in their life
• Connect families to resources: If a child screens high for adverse experiences, discuss available support services with parents, such as stress management programs, counseling, or community resources that teach children self-regulation and coping skills

"If the child's scoring high, we can maybe talk to the parent and say, 'Hey. You know, here are some resources that might be able to work to help your child maybe deal with stress, such as like teaching the child some abilities to self-regulate or cope,'" Adise said.

Dr. William Heerman, an associate professor of pediatrics at Monroe Carell Jr. Children's Hospital at Vanderbilt and holder of the William K. Warren Foundation Chair in Medicine, emphasizes that childhood obesity is "common and serious, but modifiable." He notes that "effective treatments, including behavioral programs, nutrition counseling, and when appropriate, medications, are available and increasingly supported by guidelines".

The key takeaway from both studies is that early identification and intervention matter tremendously. "We don't want these kids to turn into early adults who have a range of medical problems that we missed," Adise said. "Clinical screenings provide a window of opportunity that could prevent this. Just one small difference may have a large impact on the health of these kids".