Bipolar disorder occurs in approximately 1% of the global population . In the United States , about 3% are estimated to be affected at the same point in their life ; rates appear to be similar vim females and males.
Symptoms most commonly begins between the ages of 20 and 25 years old , am earlier onset in life is associated with worse prognosis.
Interest in functioning in the assessment of patients with bipolar disorder is growing with an emphasis on specific domains such as work , education, social life , family , and cognition.
Around one - quarter to one- third of people with bipolar disorder have financial , social or work - related problems due to the illness . Bipolar disorder is among the top 20 causes of disability worldwide and leads to substantial cost of society . due to lifestyle choices and the side effects of medications, the risk of death from natural causes such as coronary heart diseases in people with bipolar disorder is twice that of the general population.
