Bipolar I and II are types of bipolar disorder that involve manic and depressive episodes. A person with bipolar II may experience hypomania, which is less severe than the manic episodes that occur in bipolar I. Learn more about the differences between these conditions here.
People with synesthesia experience unique perceptual cross-overs, such as associating letters or sounds to colors. Learn more about it in this Spotlight.
Birth control pills are generally very effective when a person takes them correctly and consistently. However, some things can reduce the pill’s effectiveness and increase the risk of unintended pregnancy, including missing pill days, vomiting, and taking certain medications. Learn more here.