> [!infobox] <s class="aside-in"><em>mentioned in 1 topic</em></s> #### <s class="topic-title">[[Pineal Gland]]</s> A small, pea-shaped gland in the [[brain]]. Its function isn't fully understood. Researchers do know that it produces and regulates some [[hormone|hormones]], including melatonin. [[Melatonin]] is best known for the role it plays in regulating sleep patterns. Sleep patterns are also called [[circadian rhythm]]s. **See**:: [[Neuroscience]] #### Related No results to show for list query.