Underlying causes of unipolar and bipolar disorders

Your text may explain the underlying causes -- but these sites maintain that ther are many causes of unipolar and bipolar disorders.

http://www.bipolarcentral.com/otherillnesses/unipolar_disorder.asp

http://www.associatedcontent.com/article/2005028/unipolar_bipolar_depression.html?cat=5

http://www.essortment.com/family/depressionunipo_sail.htm

http://en.wikipedia.org/wiki/Bipolar_disorder

Thanks Sue, I had to do this same paper tonight and your sites helped me so much.

Unipolar disorder, also known as major depressive disorder, and bipolar disorder are complex mental health conditions that are influenced by a combination of factors, including biological, genetic, psychological, and environmental components. While the exact underlying causes are not completely understood, researchers have identified several factors that may contribute to the development of these disorders:

1. Biological factors: There is evidence to suggest that imbalances in certain chemicals in the brain, such as serotonin and dopamine, play a role in both unipolar and bipolar disorders. Additionally, structural and functional abnormalities in certain regions of the brain have been observed in individuals with these conditions.

2. Genetic factors: There is evidence of a genetic predisposition to both unipolar and bipolar disorders. Having a close family member with a history of these disorders increases the risk of developing them. Specific genes and variations in gene expression have been associated with an increased susceptibility to these conditions.

3. Psychological factors: Stressful life events, such as trauma, loss, or significant life changes, can trigger the onset of unipolar or bipolar disorder in individuals who are already at risk. Additionally, certain personality traits, such as low self-esteem, pessimism, or a tendency towards negative thinking patterns, may contribute to the development of these disorders.

4. Environmental factors: Environmental factors, such as a disrupted or abusive childhood, dysfunctional family dynamics, or chronic stress, can contribute to the development of unipolar and bipolar disorders. Substance abuse and exposure to certain toxins or substances may also increase the risk.

It is important to note that these factors interact with each other in complex ways, and the presence of one or more of these factors does not necessarily guarantee the development of these disorders. Diagnosis and treatment should be conducted by qualified healthcare professionals who can conduct a thorough evaluation of an individual's symptoms, medical history, and overall well-being.