This form of bipolar disorder is the most commonly known manic-depressive form of the illness. A person classified as bipolar I must experience at least one manic episode or mixed episode. People with bipolar I disorder may also experience a depressive episode.  People with bipolar I are the most likely to experience highs that lead to risky behavior. This form of the illness is often disruptive to one's work life and relationships. Those affected by Bipolar I are more likely to attempt suicide, with a completed suicide rate of 10-15%.  People suffering from bipolar I are also at a high risk of having or developing a substance abuse problem.  There is also a connection between bipolar I and hyperthyroidism. This makes it even more important to see a doctor. This variation involves less intense manic episodes and full-blown depressive episodes. The person may sometimes experience a muted version of hypomania, but the underlying state is usually depression.  People with bipolar II disorder are often misdiagnosed as having depression. To tell the difference, one must look for the distinguishing characteristics of bipolar depression. Bipolar depression is different from MDD because it is often paired with manic symptoms. Sometimes there is overlap between the two. It takes a qualified professional to distinguish between these conditions.  For people with bipolar II, mania may manifest as anxiety, irritability, or racing thoughts. Bursts of creativity and activity are less common. Like bipolar I, there is a high risk for suicide, hyperthyroidism, and substance abuse in bipolar II.  Bipolar II tends to be more common in women than men. This is a milder form of bipolar disorder that involves mood swings with less severe instances of mania and depression. The mood swings tend to operate on a cycle, going back and forth between depression and mania. According to the Diagnostic and Statistical Manual of Mental Disorders (DSM):  Cyclothymia begins early in life and its onset is usually in adolescence and early...

How would you rephrase that briefly using Vietnamese?
Nhận biết đặc điểm của rối loạn lưỡng cực. Tìm hiểu triệu chứng rối loạn lưỡng cực II. Nhận biết dấu hiệu của chứng tâm tính xoay chuyển.