Summary:

- The study found that disruptions in the brain's dopamine system, which regulates the body's internal clock, may contribute to the mood swings and sleep disturbances associated with bipolar disorder.
- Researchers discovered that dopamine neurons in the suprachiasmatic nucleus (SCN), the brain's central clock, exhibit rhythmic activity that synchronizes with the body's circadian rhythms.
- The findings suggest that targeting the dopamine system in the SCN could lead to new treatment approaches for bipolar disorder, which is characterized by alternating periods of mania and depression.