What are the causes of depression

summary

My child doesn't know what's going on these days. He is always surprised. Sometimes he is so happy that he becomes quiet and moody. His mood is very unstable. I don't think he is depressed by any stimulation. But my friend says it may be depression. After treatment has improved, so what are the causes of depression? Now let's take a look at it!

What are the causes of depression

The first reason: genetic susceptibility, large sample population genetic epidemiological survey shows that the closer the blood relationship with the patients, the higher the probability of suffering from depression. The probability of first degree relatives is much higher than other relatives, which is consistent with the general law of genetic diseases. Therefore, we can at least conclude that genetic factors are risk factors for depression.

The second reason: neurodevelopmental abnormalities, in which the catecholamine hypothesis is more recognized. It mainly means that the occurrence of depression may be related to the decrease of the concentration of 5-hydroxytryptamine and norepinephrine in the synaptic space of the brain. Because many antidepressants, such as selective serotonin reuptake inhibitors or selective serotonin and norepinephrine reuptake inhibitors, after use, although the concentration of these neurotransmitters in the synaptic space of the brain increases rapidly, the antidepressant effect generally takes about 2 weeks to take effect, so the sensitivity of serotonin and norepinephrine receptors increases Now the hypothesis of hypersensitivity.

The third reason: stress response, the systemic non-specific adaptive response when the body is stimulated by various internal and external environmental factors, social and psychological factors, is called stress. A variety of major life events occur suddenly or persist for a long time, which can cause strong or lasting unpleasant emotional experience and lead to depression.

matters needing attention

Here I would like to remind you that from the perspective of evolution, danger, loss and invasion will threaten our survival, and these external threats are all matters of winning or losing, life and death. If one person wins, the other person loses. It's like a tennis match. Every time the other person gains a point, you lose one point.