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Neurological Explanation of Mental Illness

There has been considerable research in psychiatric medicine over the past decade and new data has emerged as a result. But even then, the cause of mental illness has not yet been fully explained. Of course, a few reasons have come out. Such factors are discussed below. Remember that it discusses the causes of mental illness as a whole. But since mental illness is of different types, this discussion may be different about specific illnesses.

Neurological Explanation of Mental Illness
Neurological Reasons Behind Mental Illness

Causes of mental Illness


It has been observed in a few mental illnesses that this disease can be inherited. However, mental illness does not follow simple rules of heredity, such as autosomal dominant and autosomal recessive. Rather, the genes that cause mental illness can work in conjunction with several genes. Hereditary polygenetic principles, epigenetic principles, etc. are more applicable to mental illness. It cannot be said that a child will get this disease even if the parents have it.

Bacterial infections

Some mental illnesses (such as schizophrenia) are more common in people born in a particular season. One reason for this may be that an outbreak of a virus during that season could interfere with the development of the worm's brain, which could lead to the disease in the future.

Hormonal incompatibility

Some hormonal imbalances cause changes in a person's behavior. For example, over-functioning of the thyroid gland can cause people to suffer from excessive stress, with fewer secretions than needed, which can be combined with depression. On the other hand, the hormone testosterone can make a person more aggressive. The role of hormones in those mental illnesses cannot be underestimated.

Structural deformity of the brain

Symptoms of mental illness can also be caused by structural deformities in the brain. Symptoms of mental illness can occur depending on the affected area after a 'stroke' (a blockage of blood flow to the brain or a rupture of a blood vessel inside the brain resulting in a lack of energy in the brain cells). These can be mental illnesses for any ailments that come into the structure or functioning of the brain.

Psychological reasons

There are also various psychological explanations for the causes of mental illness. The basic premise of psychological explanations is that during development, parents, the influence of the environment, the person's ability to control thoughts, emotions, etc., vary, which controls the person's behavior. Gradual developmental conditions can cause mental illness.

Although there are differing opinions about the causes of mental illness, some mental illnesses have come to understand what kind of neurological changes occur. The changes in a small single 'neuron' of the nervous system for the functioning of the brain are becoming more or less understandable. Although research on this is still ongoing, a few reliable facts are added below.

The brain works through a network. Each neuron is interconnected with another neuron, and changes in one neuron can alter the action of another neuron. The information is passed from one neuron to another. Synapses contain the neurotransmitters mentioned earlier. These neurotransmitters provide information. Nervous explanations for mental illness have been found by studying this neurotransmitter.

Neurological Reasons Behind Mental Illness


Dopamine, belonging to the family catecholamines, is a neurotransmitter. An increase in dopamine causes a mental illness called schizophrenia. There are other reasons why it is said so strongly that these are for growth. However, it can be said that the increase in dopamine in the early stages causes schizophrenia. This explanation suggests that chemicals used in schizophrenia can reduce the symptoms of the disease by lowering the levels of dopamine in the brain. The effects of dopamine have been observed in diseases related to drug use.

Adrenaline, noradrenaline 

(Adrenaline, Noradrenaline) Changes in these two neurotransmitters have been observed in depression and anxiety disorders.


Differences in this neurotransmitter have been found in depression and stress disorders. The most widely used antidepressant medication today is to increase the levels of serotonin in the brain to control symptoms.

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