Our brains are plastic at all ages, including in adulthood, but during adolescence, neuroplasticity in certain brain regions is heightened.

Source: https://www.theguardian.com/lifeandstyle/2023/mar/12/dont-blame-the-young-for-being-moody-and-seven-other-ways-to-nurture-healthy-teenage-minds

These findings are supported by neuroimaging studies that illustrate how psychedelics promote neuroplasticity, enabling the brain to forge new, healthier thought patterns.

Source: https://theclarion.ca/media-release/professor-david-nutt-presents-his-insights-into-psychedelic-medicine-neural-therapeutics/