"My Partner’s Bipolar. What do I do?"

- What mania, hypomania, and depression look like.
- Where bipolar and Cluster B patterns overlap.
- Supporting your partner without taking over.
- What to do when symptoms become severe.
Bipolar disorder involves instability in the systems that regulate mood, energy, sleep, and activity. Scientists haven’t identified one complete mechanism, but evidence points to several interacting processes:
- Genetic vulnerability: Many genetic variations contribute to risk. They influence how brain cells develop, communicate, and regulate their activity, rather than acting as a single “bipolar gene.”
- Brain signaling: Researchers have identified differences in brain structure and function. These findings suggest altered regulation across interconnected systems, not simply too much or too little of one chemical.
- Sleep and biological rhythms: Sleep and mood influence each other. Disrupted sleep can help trigger episodes in susceptible people, while an emerging episode can further disrupt sleep, creating a reinforcing cycle.
During mania, increased activation can appear as racing thoughts, reduced need for sleep, heightened confidence, and impulsive decisions. During depression, pleasure, motivation, concentration, and energy can decline. These are sustained changes in functioning, not just ordinary emotional reactions.