Text Size
Stress and Mental Illness

Teen Stress Linked to Adult Mental Illnesses like Major Depression and Schizophrenia

Comments (1)
posted 11:42 PM EST, Thu January 17, 2013

For people already predisposed to mental illness (people with mental illness in the immediate family, for example) experiencing stress during adolescence likely increases the risk of experiencing mental illness as an adult.

Could teen angst cause adult schizophrenia, major depression and other serious mental illnesses?

Well if people are anything like mice (and apparently we are) for people already predisposed to mental illness, experiencing stress while a teen greatly increases the odds of developing full-blown mental illness as an adult.

The Experiment

John Hopkins Medical School researchers started off with a group of mice that had a genetic predisposition to serious mental illness.

  • Half of the mice served as a control group, and were raised through adolescence as normal
  • The other half served as the experimental group. During adolescence, these mice were placed in isolation for 3 weeks (Inducing stress)

The Results

  • The mice that were stressed during adolescence were far more likely to exhibit symptoms of mental illness in adulthood than the mice that were raised as normal to adulthood.
  • When the researchers examined the brains of the experimental mice they found that mice exposed to stress during adolescence had higher levels of the stress hormone cortisol and lower levels of the neurotransmitter dopamine in areas of the brain related to higher order brain function, like emotional regulation and thinking.
  • To see if it was cortisol that was causing the reduction in dopamine, the researchers then chemically blocked cortisol transmission. This caused dopamine levels to normalize.

The Significance

Commenting on the significance of the research, the study authors point out that:

  1. Gaining an understanding of the biological causes of elevated cortisol levels in the brain may help in the development of medications to control stress hormone levels and treat certain mental illnesses.
  2. To prevent mental illness, we need to do a better job of protecting people already predisposed to mental illness from stress during adolescence, for example, by protecting children growing up in families with mental illness from experiencing neglect.

Read the full study results in Science.

Subscribe Subscribe to this topic category
Story Highlights
  • Adolescent Stress Ups Mental Health Risk: If already predisposed to mental illness, stress during adolescence increases your risks.
  • Cortisol Plays a Role: In animal studies, adolescent stress causes increased cortisol levels into adulthood.
Creative Commons License
Copyright Notice
We welcome republishing of our content on condition that you credit Choose Help and the respective authors. This article is licensed under a Creative Commons License.
Helpful Information
Is Your Teen a Narcissist? Learn the Warning Signs
Is Your Teen a Narcissist? Learn the Warning Signs and Treatment Options © Anna Marie Gearhart
If an adolescent acts entitled, grandiose and self obsessed, does that mean she's a narcissist? Maybe...but probably not. Learn the differences between normal traits of teen development and those of narcissistic personality disorder. Read Article
Parenting & Family July 13, 2014 (27)
Use Coping Cards to Control Anxiety and Pain Coping cards filled with coping statements can help you trade negative self talk with healthier, more positive replacements. Writing coping cards is an easy, no-cost intervention that might just help you. Read on to learn how to get started. Read Article
Co-Occurring Disorders September 20, 2013 (1)

This website is certified by Health On the Net Foundation. This site complies with the HONcode standard for trustworthy health information.

Find Treatment
Browse by region »
Scan to call us
using your phone camera app