Many university students experience depression. Eventually, some people will feel better, even without treatment. Depression can also be a life-threatening illness when there is a risk of suicide. Depression is an illness in which factors such as genetics, chemical changes in the body and external events may play an important role. Research suggests that depression may be linked to changes in the functioning of brain chemicals called neurotransmitters.
Current research focuses on the serotonin, norepinephrine and dopamine systems.
Certain genetic factors and changes in body hormones have also been implicated in some depressive conditions. These complex biological changes can produce profound changes in your mood and behavior. Antidepressants are thought to correct some of the chemical imbalances present in a depressive illness. The diagnosis of depression is based on the recognition of certain characteristic signs and symptoms affecting your mood state, thinking patterns and physical well-being. At present, there is no blood test that can confirm or eliminate the diagnosis of depression.