Australian psychiatrist John Cade discovered lithium's efficacy by accident. He injected urine from manic patients into guinea pigs, using lithium to dissolve uric acid. Through control experiments, he found lithium itself had a profound calming effect, leading to the breakthrough treatment for mania.
Unlike many other psychiatric conditions, the psychiatric consensus is that talk therapy by itself is rarely, if ever, sufficient for managing bipolar disorder. It must be combined with drug therapies to address the underlying neurochemical and neural circuit disruptions effectively.
A key, yet incredible, feature of a manic episode is the ability to go seven or more days with zero sleep. Critically, the individual is not troubled by this profound sleep deprivation and continues to operate with high energy, a defining symptom that distinguishes mania from other states.
Hyperactivity in certain brain circuits during manic episodes can be neurotoxic, leading to the atrophy of networks responsible for interoception (perceiving internal states). This explains why individuals may not register their own extreme symptoms like having no sleep for days or speaking excessively.
While bipolar disorder is maladaptive, data reveals a strong correlation between creative professions and mood disorders. One review found up to 90% of eminent poets experienced depression or mania, and roughly 30% of acclaimed actors had mania, suggesting manic traits may fuel creative output.
A key diagnostic criterion for Bipolar 1 is a manic episode lasting at least seven days. Contrary to a common misconception, a major depressive episode is not required for a Bipolar 1 diagnosis, though it is often present in Bipolar 2.