Bipolar<unk>  shifts Late adolescence and early adulthood are peak years for the onset of bipolar disorder. The condition is characterized by intermittent episodes of mania and/or depression, with an absence of symptoms in between. During these episodes, people with bipolar disorder exhibit disruptions in normal<unk> , psychomotor activity (the level of physical activity that is influenced by<unk> —e.g. constant fidgeting during mania or slowed movements during depression—circadian rhythm and cognition. Mania can present with varying levels of<unk>  disturbance, ranging from euphoria, which is associated with "classic mania", to dysphoria and irritability. Psychotic symptoms such as delusions or hallucinations may occur in both manic and depressive episodes; their content and nature are consistent with the person's prevailing<unk> . According to the DSM-5 criteria, mania is distinguished from hypomania by length: hypomania is present if elevated<unk>  symptoms persist for at least four consecutive days, while mania is present if such symptoms persist for more than a week. Unlike mania, hypomania is not always associated with impaired functioning. The biological mechanisms responsible for switching from a manic or hypomanic episode to a depressive episode, or vice versa, remain poorly understood. Manic episodes An 1892 color lithograph depicting a woman diagnosed with hilarious mania Also known as a manic episode, mania is a distinct period of at least one week of elevated or irritable<unk> , which can range from euphoria to delirium. The core symptom of mania involves an increase in energy of psychomotor activity. Mania can also present with increased self-esteem or grandiosity, racing thoughts, pressured speech that is difficult to interrupt, decreased need for sleep, disinhibited social behavior, increased goal-oriented activities and impaired judgement, which can lead to exhibition of behaviors characterized as impulsive or high-risk, such as hypersexuality or excessive spending. To fit the definition of a manic episode, these behaviors must impair the individual's ability to socialize or work. If untreated, a manic episode usually lasts three to six months. In severe manic episodes, a person can experience psychotic symptoms, where thought content is affected along with<unk> . They may feel unstoppable, or as if they have a special relationship with God, a great mission to accomplish, or other grandiose or delusional ideas. This may lead to violent behavior and, sometimes, hospitalization in an inpatient psychiatric hospital. The severity of manic symptoms can be measured by rating scales such as the Young Mania Rating Scale, though questions remain about the reliability of these scales. The onset of a manic or depressive episode is often foreshadowed by sleep disturbance. Manic individuals often have a history of substance abuse developed over years as a form of "self-medication". Hypomanic episodes An 1858 lithograph captioned 'Melancholy passing into mania' Hypomania is the milder form of mania, defined as at least four days of the same criteria as mania, but which does not cause a significant decrease in the individual's ability to socialize or work, lacks psychotic features such as delusions or hallucinations, and does not require psychiatric hospitalization. Overall functioning may actually increase during episodes of hypomania and is thought to serve as a defense mechanism against depression by some. Hypomanic episodes rarely progress to full-blown manic episodes. Some people who experience hypomania show increased creativity, while others are irritable or demonstrate poor judgment. Hypomania may feel good to some individuals who experience it, though most people who experience hypomania state that the stress of the experience is very painful. People with bipolar disorder who experience hypomania tend to forget the effects of their actions on those around them. Even when family and friends recognize<unk>  swings, the individual will often deny that anything is wrong. If not accompanied by depressive episodes, hypomanic episodes are often not deemed problematic unless the<unk>  changes are uncontrollable or volatile. Most commonly, symptoms continue for time periods from a few weeks to a few months. Depressive episodes 'Melancholy' by William Bagg, after a photograph by Hugh Welch Diamond Symptoms of the depressive phase of bipolar disorder include persistent feelings of sadness, irritability or anger, loss of interest in previously enjoyed activities, excessive or inappropriate guilt, hopelessness, sleeping too much or not enough, changes in appetite and/or weight, fatigue, problems concentrating, self-loathing or feelings of worthlessness, and thoughts of death or suicide. Although the DSM-5 criteria for diagnosing unipolar and bipolar episodes are the same, some clinical features are more common in the latter, including increased sleep, sudden onset and resolution of symptoms, significant weight gain or loss, and severe episodes after childbirth. The earlier the age of onset, the more likely the first few episodes are to be depressive. For most people with bipolar<unk>  1 and 2, the depressive episodes are much longer than the manic or hypomanic episodes. Since a diagnosis of bipolar disorder requires a manic or hypomanic episode, many affected individuals are initially misdiagnosed as having major depression and incorrectly treated with prescribed antidepressants. Mixed affective episodes In bipolar disorder, a mixed state is an episode during which symptoms of both mania and depression occur simultaneously. Individuals experiencing a mixed state may have manic symptoms such as grandiose thoughts while simultaneously experiencing depressive symptoms such as excessive guilt or feeling suicidal. They are considered to have a higher risk for suicidal behavior as depressive emotions such as hopelessness are often paired with<unk>  swings or difficulties with impulse control. Anxiety disorders occur more frequently as a comorbidity in mixed bipolar episodes than in non-mixed bipolar depression or mania. Substance (including alcohol) abuse also follows this trend, thereby appearing to depict bipolar symptoms as no more than a consequence of substance abuse. Comorbid conditions People with bipolar disorder often have other co-existing psychiatric conditions such as anxiety (present in about 71% of people with bipolar disorder), substance use (56%), personality disorders (36%) and attention deficit hyperactivity disorder (10–20%) which can add to the burden of illness and worsen the prognosis. Certain medical conditions are also more common in people with bipolar disorder as compared to the general population. This includes increased rates of metabolic syndrome (present in 37% of people with bipolar disorder), migraine headaches (35%), obesity (21%) and<unk> 2 diabetes (14%). This contributes to a risk of death that is two times higher in those with bipolar disorder as compared to the general population. Substance abuse is a common comorbidity in bipolar disorder; the subject has been widely reviewed.
types of Mood disorder
symptom of Bipolar disorder
types of Eating disorder
symptom of Dysthymia
symptom of Somatization disorder
symptom of Conversion disorder
symptom of Anxiety disorder
symptoms of Mental disorder