Researchers found a link between brain structure and sleep quality in young people. A small gland in the brain is involved. For some, a larger gland is associated with better rest, but for those with anxiety, it can mean poorer sleep.

A study examined the brains of 10-to-13-year-olds using MRI scans and sleep monitoring. The results showed a surprising connection between the gland, anxiety, and sleep quality. Further details of the study are available, including the methods used and the findings on the role of the pineal gland in preteens' sleep patterns.