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Children with traumatic experiences have a higher risk of obesity – but this can be turned around

  • Written by Ladan Hashemi, Senior Research Fellow in Health Sciences, University of Auckland, Waipapa Taumata Rau

Children with traumatic experiences in their early lives have a higher risk of obesity. But as our new research[1] shows, this risk can be reduced through positive experiences.

Childhood traumatic experiences are alarmingly common. Our analysis of data from nearly 5,000 children in the Growing Up in New Zealand study[2] revealed almost nine out of ten[3] (87%) faced at least one significant source of trauma by the time they were eight years old. Multiple adverse experiences were also prevalent, with one in three children (32%) experiencing at least three traumatic events.

Childhood trauma[4] includes a range of experiences such as physical and emotional abuse, peer bullying and exposure to domestic violence. It also includes parental substance abuse, mental illness, incarceration, separation or divorce and ethnic discrimination.

We found children from financially disadvantaged households and Māori and Pasifika had the highest prevalence of nearly all types of adverse experiences, as well as higher overall numbers of adversities.

The consequences of these experiences were far-reaching. Children who experienced at least one adverse event were twice as likely to be obese by age eight. The risk increased with the number of traumatic experiences. Children with four or more adverse experiences were nearly three times more likely to be obese.

Notably, certain traumatic experiences (including physical abuse and parental domestic violence) related more strongly to obesity than others. This highlights the strong connection between early-life adversity and physical health outcomes.

Connecting trauma to obesity

One potential explanation could be that the accumulation of early stress in children’s family, school and social environments is associated with greater psychological distress. This in turn makes children more likely to adopt unhealthy weight-related behaviours[5].

This includes consuming excessive high-calorie “comfort” foods such as fast food and sugary drinks, inadequate intake of nutritious foods, poor sleep, excessive screen time and physical inactivity. In our research, children who experienced adverse events were more likely to adopt these unhealthy behaviours. These, in turn, were associated with a higher risk of obesity.

Despite these challenges, our research also explored a promising area: the protective and mitigating effects of positive experiences[6].

We defined positive experiences as:

  • parents in a committed relationship

  • mothers interacting well with their children

  • mothers involved in social groups

  • children engaged in enriching experiences and activities such as visiting libraries or museums and participating in sports and community events

  • children living in households with routines and rules, including those regulating bedtime, screen time and mealtimes

  • children attending effective early childhood education.

The findings were encouraging. Children with more positive experiences were significantly less likely to be obese by age eight.

For example, those with five or six positive experiences were 60% less likely to be overweight or obese compared to children with zero or one positive experience. Even two positive experiences reduced the likelihood by 25%.

Children playing with basketballs
Positive childhood experiences such as playing sports or visiting libraries can lower the risk of obesity. Getty Images[7]

How positive experiences counteract trauma

Positive experiences can help mitigate the negative effects of childhood trauma. But a minimum of four positive experiences was required to significantly counteract the impact of adverse events.

While nearly half (48%) of the study participants had at least four positive experiences, a concerning proportion (more than one in ten children) reported zero or only one positive experience.

The implications are clear. Traditional weight-loss programmes focused solely on changing behaviours are not enough to tackle childhood obesity. To create lasting change, we must also address the social environments, life experiences and emotional scars of early trauma shaping children’s lives.

Fostering positive experiences is a vital part of this holistic approach. These experiences not only help protect children from the harmful effects of adversity but also promote their overall physical and mental wellbeing. This isn’t just about preventing obesity – it’s about giving children the foundation to thrive and reach their full potential.

Creating supportive environments for vulnerable children

Policymakers, schools and families all have a role to play. Community-based programmes, such as after-school activities, healthy relationship initiatives and mental health services should be prioritised to support vulnerable families.

Trauma-informed care[8] is crucial, particularly for children from disadvantaged households who face higher levels of adversity and fewer positive experiences. Trauma-informed approaches are especially crucial for addressing the effects of domestic violence and other adverse childhood experiences.

Comprehensive strategies should prioritise both safety and emotional healing by equipping families with tools to create safe, nurturing environments and providing access to mental health services and community support initiatives.

At the family level, parents can establish stable routines, participate in social networks and engage children in enriching activities. Schools and early-childhood education providers also play a key role in fostering supportive environments that help children build resilience and recover from trauma.

Policymakers should invest in resources that promote positive experiences across communities, addressing inequalities that leave some children more vulnerable than others. By creating nurturing environments, we can counterbalance the impacts of trauma and help children lead healthier, more fulfilling lives.

When positive experiences outweigh negative ones, children have a far greater chance of thriving – physically, emotionally and socially.

References

  1. ^ new research (bmcpublichealth.biomedcentral.com)
  2. ^ Growing Up in New Zealand study (www.growingup.co.nz)
  3. ^ nine out of ten (www.msd.govt.nz)
  4. ^ Childhood trauma (www.msd.govt.nz)
  5. ^ unhealthy weight-related behaviours (www.msd.govt.nz)
  6. ^ the protective and mitigating effects of positive experiences (bmcpublichealth.biomedcentral.com)
  7. ^ Getty Images (www.gettyimages.com.au)
  8. ^ Trauma-informed care (www.sciencedirect.com)

Read more https://theconversation.com/children-with-traumatic-experiences-have-a-higher-risk-of-obesity-but-this-can-be-turned-around-245656

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