“Brain age difference was about three years — we hadn’t expected that large an increase given that the lockdown was less than a year [long],” said Ian Gotlib, a professor of psychology at Stanford University and first author of the study. Writing in the journal Biological Psychiatry: Global Open Science, the team report that the participants — a representative sample of adolescents in the Bay Area in California — originally agreed to take part in a study looking at the impact of early life stress on mental health across puberty. As a result, participants were also assessed for symptoms of depression and anxiety. The post-lockdown group self-reported greater mental health difficulties, including more severe symptoms of anxiety, depression and internalizing problems. “Deterioration in mental health is accompanied by physical changes in the brain for teens, likely due to the stress of the pandemic,” said Gotlib.
“In older adults, these brain changes are often association with reduced cognitive functioning. It’s not clear yet what they mean in adolescents. But this is the first demonstration that difficulties in mental health during the pandemic are accompanied by what seem to be stress-related changes in brain structure.”
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