Study of Teen Brains Offers Clues to Timing of Mental Illness [Consumer.Healthday.com]
Changes that occur in teens' brains as they mature may help explain why the first signs of mental illness tend to appear during this time, researchers report. British researchers used MRI scans to compare the brain structures of nearly 300 participants who were aged 14 to 24. The scientists discovered that the brain's outer region (cortex) becomes thinner as teens get older. At the same time, they saw that levels of myelin increased within the cortex. That increase was seen in critical...