Like most computer hobbyists and programmers, I've amassed boxes of USB cables to connect USB, Micro-USB, and Mini-USB to chargers, computers, and gadgets. These cables are a mix of phone charger cables, and cables that came with external hard drives, bike lights, GPS units, and other miscellaneous gadgets.
Bipolar Disorder. Causes of Bipolar Disorder. Both genetic elements and environmental factors can create vulnerability to the disorder, so the causes vary from person to person. While the disorder can run in families, no one has definitively identified specific genes that create risk for developing the condition.
1 Bipolar II involves less severe manic episodes than bipolar I; however, their depressive episodes are the same. 2  Cyclothymia is a chronic but milder form of bipolar disorder, characterized by episodes of hypomania and depression that last for at least two years.here is no single cause for bipolar disorder. Indeed, like all psychological disorders, bipolar disorder is a complex condition with multiple contributing factors, including: 1  Genetic: Bipolar disorder tends to run in families, so researchers believe there is a genetic predisposition for the disorder.