“What is Bipolar Disorder?”
Source: www.nimh.nih.org
National Institute of Mental Health
Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity levels, and the ability to carry out day-to-day tasks. Symptoms of bipolar disorder are severe. They are different from the normal ups and downs that everyone goes through from time to time. Bipolar disorder symptoms can result in damaged relationships, poor job or school performance, and even suicide. But bipolar disorder can be treated, and people with this illness can lead full and productive lives.
Bipolar disorder often develops in a person’s late teens or early adult years. At least half of all cases start before age 25.1 Some people have their first symptoms during childhood, while others may develop symptoms late in life.
Bipolar disorder is not easy to spot when it starts. The symptoms may seem like separate problems, not recognized as parts of a larger problem. Some people suffer for years before they are properly diagnosed and treated. Like diabetes or heart disease, bipolar disorder is a long-term illness that must be carefully managed throughout a person’s life.
Bipolar disorder goes by many names: manic depression, manic-depressive disorder, manic-depressive illness, bipolar mood disorder, and bipolar affective disorder are medical terms for the same condition.
Bipolar disorder is classified into four different types: Bipolar I, Bipolar II, Cyclothymic Disorder, or Bipolar Disorder Not Otherwise Specified. Mental health experts separate the condition into these four types because the symptoms of bipolar disorder show up differently in different people. When doctors know what type someone has, they can tailor treatment to that person’s specific needs.
How Does It Affect People?
Bipolar disorder affects both men and women. For many people, the first symptoms show up in their early twenties. However, research has shown that the first episode of bipolar disorder is occurring earlier: It often shows up in adolescence, and even children can have the disorder.
Recent research suggests that kids and teens with bipolar disorder don’t always have the same behavioral patterns that adults with bipolar disorder do. For example, kids who have bipolar disorder may experience particularly rapid mood changes and may have some of the other mood-related symptoms listed below, such as irritability and high levels of anxiety. But they may not show other symptoms that are more commonly seen in adults.
Because brain function is involved, the ways people with bipolar disorder think, act, and feel are all affected. This can make it especially difficult for other people to understand their condition. It can be incredibly frustrating if other people act as though someone with bipolar disorder should just “snap out of it,” as if a person who is sick can become well simply by wanting to. Bipolar disorder isn’t a sign of weakness or a character flaw; it’s a serious medical condition that requires treatment, just like any other condition.
What Are the Signs and Symptoms?
A person with bipolar disorder will go through episodes of mania (highs) and at other times experience episodes of depression (lows). These aren’t the normal periods of happiness and sadness that everyone experiences from time to time. Instead, the episodes are intense or severe mood swings, like a pendulum that keeps arcing higher and higher.
Symptoms of mania include:
- racing speech and thoughts
- increased energy
- decreased need for sleep
- elevated mood and exaggerated optimism
- increased physical and mental activity
- excessive irritability, aggressive behavior, and impatience
- poor judgment
- reckless behavior, like excessive spending, making rash decisions, and erratic driving
- difficulty concentrating
- inflated sense of self-importance
Symptoms of depression include:
- loss of interest in usual activities
- prolonged sad or irritable mood
- loss of energy or fatigue
- feelings of guilt or worthlessness
- sleeping too much or inability to sleep
- drop in grades and inability to concentrate
- inability to experience pleasure
- appetite loss or overeating
- anger, worry, and anxiety
- thoughts of death or suicide
In adults, episodes of mania or depression usually last for weeks or months, although they can be shorter in length. In children and adolescents, though, these episodes can be much shorter, and a kid or teen can even go back and forth between mania and depression throughout the day. Episodes of mania or depression may happen irregularly and follow an unpredictable pattern or they may be linked, with a manic episode always following a period of depression, or vice versa. Sometimes episodes have a seasonal pattern. Mania in the spring, for example, may be followed by depression in the winter.
Between episodes, a person with bipolar disorder usually returns to normal (or near-normal) functioning. For some people, though, there is little or no “break period” between their cycles. These mood swing cycles can change slowly or rapidly, with rapid cycling between mania and depression being much more common in women, children, and adolescents.
Some people with bipolar disorder turn to alcohol and drugs because they feel temporarily better when they’re high. But using alcohol and drugs can have disastrous results for people with bipolar disorder. Substance abuse can actually make the symptoms worse, as well as making the condition hard for doctors to diagnose.
What Causes Bipolar Disorder?
Doctors and scientists don’t know the exact cause of bipolar disorder, but they think that biochemical, genetic, and environmental factors may all be involved. It’s believed this condition is caused by imbalances in certain brain chemicals called neurotransmitters. If the neurotransmitters aren’t in balance, the brain’s mood-regulating system won’t work the way it should.
Genes also play a role. If a close relative has bipolar disorder, a person’s risk of developing the condition is higher. This doesn’t mean, though, that if you have a relative with bipolar disorder you will automatically develop it! Even in studies involving identical twins raised in the same home, one twin sometimes had bipolar disorder whereas the other did not. Researchers are now working on identifying the gene or genes involved in bipolar disorder.
Environmental factors may play a role in bipolar disorder. For some teens, stresses such as a death in the family, their parents’ divorce, or other traumatic events could trigger a first episode of mania or depression. Sometimes, going through the changes of puberty can set off an episode. In girls, symptoms can be tied to their monthly menstrual cycle.
Reviewed by: David V. Sheslow, PhD
Date reviewed: January 2007
Source (except the introductory section of “What is Bipolar Disorder?”): Kidshealth.org
