Depression And Mental Disorders

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Depression is one of the most widespread mental disorders globally, affecting more that 350 million people of all ages. It is characterized by disturbed sleep, loss of appetite, sadness, poor concentration and feelings of guilt. There are various types of depression which are long lasting, and other types which are constantly reoccurring (World Health Organisation , 2012). Severe symptoms of depression that inhibit the ability to work, sleep and eat is categorised as major depression, this form of depression can occur once in a lifetime, however in some circumstances it may occur more often. Persistent depressive disorder can last up to 2 years; symptoms may resemble major depression along with episodes of less severe symptoms. Psychotic depression is a form of severe depression when a person begins to hallucinate and have delusions. Postpartum depression is experienced by women after birth, physical and hormonal changes can lead to depression. Seasonal affective depression (SAD) usually occurs during winter due to less sunlight. Another major type of depression is bipolar disorder which is categorized as changes in mood, for instance extreme high moods to extreme low moods (National Institute of Mental Health, 2011). The prevalence of depression was analysed in 8449 individuals aged between 15 and 40, results showed that depression was commonly found in white males and females than in black and Mexican male and females (Stephanie et al, 2005). Physiological symptoms of depression include an alteration in mood involving an individual to feel sadness, lonely, irritable, anxious and suicidal with a negative self-perception correlating with guilt. Physical changes involve anorexia due to loss of appetite, constipation, changes in ... ... middle of paper ... ...epressant drugs are required to relieve symptoms. Many antidepressants work by raising levels of monoamine neurotransmitters in the synapse. TCA’s, SSRI’s and SNRI’s are equally successful in depressive patients however differ in terms of their side effects. Due to advantages in pharmacological treatment and minimum variation in antidepressant efficiency, the choice of medication available to depression patients remains a choice in accordance to the patient’s characteristics and which treatment is deemed safe with less severe side effects. Antidepressants used today inhibit the role of serotonin and norepinephrine transporters, therefore preventing reuptake of targeted neurotransmitters. Although TCA’s are much cheaper to administer to patients, the overall rate of patients running depression-free is significantly lower than those patients who are prescribed SSRI’s.

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