服务承诺
资金托管
原创保证
实力保障
24小时客服
使命必达
51Due提供Essay,Paper,Report,Assignment等学科作业的代写与辅导,同时涵盖Personal Statement,转学申请等留学文书代写。
51Due将让你达成学业目标
51Due将让你达成学业目标
51Due将让你达成学业目标
51Due将让你达成学业目标私人订制你的未来职场 世界名企,高端行业岗位等 在新的起点上实现更高水平的发展
积累工作经验
多元化文化交流
专业实操技能
建立人际资源圈Depression
2013-11-13 来源: 类别: 更多范文
Depression
Depression is a mental illness in which a person experiences deep, unshakable sadness and diminished interest in nearly all activities. Depression usually begins during a persons 20's or 30's. The illness may come on slowly, then deepen gradually over months or years. On the other hand, it may erupt suddenly in a few weeks or days. There are 3 types of depression; major depression, Bipolar depression, and seasonal affective disorder. Many of them come from anxiety or a situation which caused the person to become extremely depressed. Seasonal affective disorder is felt only during autumn and winter, when there are few hours of daylight. Many things can cause depression. Sometimes it is caused from a high amount of stress and conflicts in a persons life. Some depressions seem to come suddenly, even when things are going well. Most psychologists believe depression results from an interaction between stressful life events and a persons biological and psychological vulnerabilities. Genes may also influence depression by causing abnormal activity in the brain. Neurotransmitters in the brain play an important role in regulating moods and emotions. Neurotransmitters involved in depression include norepinephrine, dopamine, and serotonin. It is suggested that depression results from lower
depression, people, person, often, support, bipolar, affects, illness, help, reduce, feel, because, alliance, society, life, helps, disorders, depressed, sleep, scientific, persons, mood, disorder, causes, being, amount, very, therapy, patients, pain, others, ones, medical, materials, massage

