What are common symptoms of Bipolar disorder?

Bipolar disorder is characterized by significant mood swings that include emotional highs (mania or hypomania) and lows (depression). The correct choice reflects these core symptoms. During a manic episode, individuals may experience heightened energy levels, euphoria, or irritability, while depressive episodes can involve feelings of sadness, hopelessness, and a lack of energy or interest in activities. Both sets of symptoms are crucial for the diagnosis of bipolar disorder and are foundational in understanding the condition’s impact on an individual’s life.

The other options include symptoms associated with different mental health conditions. Memory loss and paranoia can be related to various other disorders, such as dementia or schizophrenia, while anxiety and social withdrawal are more commonly observed in conditions like anxiety disorders or depression. Hypomania and delusions may occur in bipolar disorder, but they do not encompass the broad, fundamental symptoms of the disorder, which are primarily defined by the presence of both manic and depressive episodes. This makes the correct choice the most representative of the characteristic features of bipolar disorder.