Original sentence: Bipolar disorder is a psychiatric condition defined by recurrent episodes of significant disturbance in mood.Diagnosis is based on the patient's self-reported experiences, as well as observed behavior.Individuals suffering from bipolar disorder typically experience fluid states of mania, hypomania or what is referred to as a mixed states in conjunction with depressive episodes.Studies suggest that genetics, early environment, neurobiology, and psychological and social processes are important contributory factors.The disorder has been subdivided into Bipolar I, Bipolar II-Rapid Cycling variant, and Cyclothymia.These clinical states typically alternate with a normal range of mood.These discturbances can occur on a spectrum that ranges from debilitating depression to unbridled mania
Edited sentence: Bipolar disorder can range in severity from a mild annoyance to a serious lifelong disability, and is often difficult to diagnose due to its complex nature.Bipolar disorder is a psychiatric condition defined by recurrent episodes of significant disturbance of mood.Diagnosis is based on the patient's self-reported experiences and observed behavior.Individuals suffering a bipolar disorder generally experience fluid states of mania, hypomania or what is referred to as a mixed states in conjunction with depressive episodes.It has been subdivided into Bipolar I, Bipolar II, Rapid Cycling variant and Cyclothymia.No laboratory test for schizophrenia exists.Studies suggest that genetics, early environment, neurobiology and psychological and social processes are important contributory factors.These can occur on a spectrum ranging from debilitating depression to unbridled mania.These clinical states typically alternate with a normal range of mood, which is termed euthymia