Toxic Stress Response: The Facts

The future of any society depends on its ability to foster the healthy development of the next generation. Extensive research on the biology of stress now shows that healthy development can be derailed by excessive or prolonged activation of stress response systems in the body (especially the brain), with damaging effects on learning, behavior, and health across the lifespan.

Learning how to cope with adversity is an important part of healthy child development. When we are threatened, our bodies prepare us to respond by increasing our heart rate, blood pressure, and stress hormones, such as cortisol. When a young child’s stress response systems are activated within an environment of supportive relationships with adults, these physiological effects are buffered and brought back down to baseline. The result is the development of healthy stress response systems. However, if the stress response is extreme and long-lasting, and buffering relationships are unavailable to the child, the result can be damaged, weakened systems and brain architecture, with lifelong repercussions.

It’s important to distinguish among three kinds of responses to stress: positive, tolerable, and toxic. As described below, these three terms refer to the stress response systems’ effects on the body, not to the stressful event or experience itself:

Positive stress response is a normal and essential part of healthy development, characterized by brief increases in heart rate and mild elevations in hormone levels. Some situations that might trigger a positive stress response are the first day with a new caregiver.

Tolerable stress response activates the body’s alert systems to a greater degree as a result of more severe, longer-lasting difficulties, such as the loss of a loved one, a natural disaster, or a frightening injury. If the activation is time-limited and buffered by relationships with adults who help the child adapt, the brain and other organs recover from what might otherwise be damaging effects.

Toxic stress response can occur when a child experiences strong, frequent, and/or prolonged adversity—such as physical or emotional abuse, chronic neglect, caregiver substance abuse or mental illness, exposure to violence, and/or the accumulated burdens of family economic hardship—without adequate adult support. This kind of prolonged activation of the stress response systems can disrupt the development of brain architecture and other organ systems, and increase the risk for stress-related disease and cognitive impairment, well into the adult years.

When toxic stress response occurs continually, or is triggered by multiple sources, it can have a cumulative toll on an individual’s physical and mental health—for a lifetime. The more adverse experiences in childhood, the greater the likelihood of developmental delays and later health problems, including heart disease, diabetes, substance abuse, and depression. Research also indicates that supportive, responsive relationships with caring adults as early in life as possible can prevent or reverse the damaging effects of toxic stress response.

The future of any society depends on its ability to foster the healthy development of the next generation. Extensive research on the biology of stress shows that healthy development can be derailed by excessive or prolonged activation of stress response systems in the body (especially the brain), with damaging effects on learning, behavior, and health across the lifespan.

While most adults have the maturity and experience to deal with stress, children do not, and the negative effects of stress are escalating in our kids’ health and behavior. Whether temper tantrums, bullying, aggression and violence, or obesity, drug, tobacco and alcohol abuse, recent studies indicate that the stress levels facing our kids today are not only greater than at any time in history, but parents are losing the battle to  protect their kids from these stresses.

 

Is all stress damaging?
What causes stress to become toxic?
What can we do to prevent damage from toxic stress response?
When should we worry about toxic stress?

For the answers to these questions, please review the article here.

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