In 1980 the terms “bipolar” (meaning two directions) and “unipolar” (meaning one direction) were chosen to replace the terms manic depression and major depressive illness by the psychiatrists who compiled the third Diagnostic and Statistical Manual of Mental Disorders This change confused a lot of people.
To put it simply a person diagnosed as having a bipolar (two directions) disorder experiences both depressions and manias with well times in between. A person diagnosed as unipolar (one direction) experiences only episodes of depressions with well times in between.
Symptoms of Depression
Depression is characterised by a sad, despairing mood. An individual may experience some or all of the following symptoms over a period of at least two weeks.
• Preoccupation with failures and inadequacies or excessive guilt
• Feelings of worthlessness
• Avoidance of formerly enjoyable activities and contacts
• Difficulty concentrating or making a decision
• Suicidal thoughts and/or actions
• Changes in appetite, either increases or decreases
• Decreased sex drive
• Difficulty sleeping or increased need for sleep
• Loss of energy
• Agitation (anxiety)
Symptoms of Mania
At the onset of a manic phase a person can seem to be more outgoing, more energetic, and more creative. But as the mood swing increases, these tendencies become more exaggerated and some or all of the fallowing may be noticed . . .
• Extreme irritability or rapid unpredictable mood changes
• Grandiose delusions or inflated self-esteem
• Excessive energy
• Racing thoughts and flights of ideas
• Pressured speech
• Overspending
• Decreased need for sleep
• Increased sex drive and indiscretion
• Impaired judgements
Uni and bipolar disorders are considered spectrum disorders according to the current Diagnostic and Statistical Manual of Mental Disorders meaning that people have a range in the frequency and severity of how they experience the symptoms of these disorders.