The human brain is the most complex mechanism in the world. The psyche as its component has not been fully studied to date. This means that the reasons for the onset and treatment of many mental illnesses are still unknown to psychiatrists. The tendency for the formation of new syndromes is growing, respectively, blurred boundaries between the norm and pathology appear. Having read this article to the end, you will know about the most terrible mental illnesses, their formation, symptoms, possible correction options, treatment, and why patients with such disorders are dangerous to others.
Mental illness is ...
Under mental illness understand mental disorders (souls). That is, a person with mental disorders has such characteristics as impaired thinking, frequent changes in mood and behavior that go beyond moral standards. The course of the disease can be easy, which allows a sick person to live like other people, start a relationship and go to work. But if a person has been diagnosed with a serious or dangerous mental illness, then he will be constantly under the supervision of psychiatrists and will be required to take the strongest medicines so that his personality can somehow exist.
Types of Mental Disorders
Mental illnesses are classified according to the principle of origin and are divided into two large groups.
Endogenous - mental illness caused by internal factors in the brain, most often due to heredity, these include:
- bipolar personality disorder;
- schizophrenia;
- epilepsy;
- age-related mental disorders (dementia, Parkinson's disease).
Exogenous - mental disorders caused by external factors (brain damage, infection, intoxication), these diseases include:
- neurosis;
- psychoses
- addiction;
- alcoholism.
Top scariest and most dangerous mental disorders
Patients who are not able to control themselves and their actions in society are automatically considered dangerous to others. A person with such a disease can become a maniac, killer or pedophile. Below you will learn about the most terrible and dangerous mental illnesses for others:
- Delirium tremens - is included in the classification of psychoses, occurs due to the frequent and prolonged use of alcohol. The signs of this ailment are manifold: all kinds of hallucinations, delirium, a sharp mood drop right up to unjustified aggression. Surrounding people should be wary, since such a person in an attack of aggression can cause injury.
- Idiocy - the level of intelligence of such patients is exactly the same as in young children 2-3 years old. They live instinctively, cannot learn any skills, learn moral principles. Accordingly, an idiot is a threat to others. Therefore, it requires round-the-clock monitoring.
- Hysteria - such a disorder most often affects women, and this manifests itself in violent reactions, emotions, moods, spontaneous actions. At such moments, a person does not control himself and can harm relatives and other people.
- Misanthropy is a mental illness, manifested by hatred and hostility to other people. In the severe form of the course of the disease, the misanthrope often creates a philosophical society of haters, calling for numerous murders and brutal wars.
- Obsessive states. Are manifested by the obsession of thoughts, ideas, actions, and a person can not get rid of it. Such an ailment is characteristic for people with high mental abilities. There are people with innocuous obsessions, but sometimes crimes are committed because of constant obsessive thoughts.
- Narcissistic personality disorder is a behavioral change in personality, manifested by inadequately overestimated self-esteem, arrogance and at first glance it seems completely harmless. But due to the severe form of the course of the disease, such people can substitute, interfere, disrupt plans, impede and in every way poison the life of others.
- Paranoia - this disorder is diagnosed in patients who are preoccupied with delusions of persecution, delusions of grandeur, etc. This disease has exacerbations and moments of calm. It is dangerous because during a relapse the paranoid may not even recognize his relative, mistaking him for some kind of enemy. It is believed that such disorders are the worst mental illness.
- Pyromania - a disease of this kind is very dangerous for people around them and their property. Patients with this diagnosis are pathologically fond of observing the fire. During such observations, they are sincerely happy and satisfied with their life, but as soon as the fire ceases to burn, they become sad and aggressive. Pyromancers set fire to everything in a row - their things, the things of loved ones and others, strangers.
- Stress and impaired adaptation. Usually comes after a stressful situation (death of loved ones, shock, violence, disaster, etc.), has a stable nature of the course of the disease. During this period, the patient is especially dangerous, since his adaptation of behavior and moral standards is disturbed.

Severe mental illness
The following is a list of a group of mental illnesses that are severe and difficult to treat. It is generally accepted that these are the most severe and most terrible mental illnesses of a person:
- Allotriophagy - such a diagnosis is made to those individuals who excessively consume inedible objects such as earth, hair, iron, glass, plastic and much more. The cause of this disease is considered stress, shock, excitement or irritation. Inedible food often leads the patient to death.
- Bipolar personality disorder manifests itself in a patient with a change of mood from the deepest depression to a state of euphoria. Such phases can alternate among themselves several times a month. In this state, the patient cannot think sensibly, so he is prescribed treatment.
- Schizophrenia is one of the most severe mental illnesses. The patient believes that his thoughts do not belong to him, as if someone had taken possession of his head and mind. The patient's speech is illogical and incoherent. Schizophrenic is estranged from the outside world and lives only in his distorted reality. His personality is ambiguous, for example, he can feel love and hatred towards a person at the same time, sit or stand in the same position motionless for several hours, and then move without stopping.
- Clinical depression. This mental disorder is characteristic of patients who are pessimistic, unable to work and socialize, they lack energy, low self-esteem, constant guilt, and diet and sleep are disturbed. In clinical depression, a person cannot recover on his own.
- Epilepsy - this disease is accompanied by convulsions, manifests itself either imperceptibly (twitching of the eye for a long time), or a full-fledged attack, when a person loses consciousness and is subjected to convulsive seizures, while foam is released from his mouth.
- Dissociative identity disorder - the separation of the personality into two or more, which can exist as a separate individual. From the history of psychiatry: Billy Milligan - a patient in a psychiatric institution had 24 personalities.

Causes
All of the above most terrible mental illnesses have the main causes of development:
- heredity;
- negative environment;
- unhealthy pregnancy;
- intoxication and infection;
- brain damage;
- violent acts carried out in childhood;
- severe mental trauma.
Symptoms
Only a specialist can say that the person is really sick or feigns. In order to determine for yourself, you need to consider all the signs of the disease in the aggregate. Below are the main symptoms of terrible mental illness, according to which we can conclude that a person is mentally ill:
- rave;
- excessive emotionality;
- revenge and anger;
- distraction;
- self-care;
- madness;
- alcoholism and drug addiction;
- hallucinations;
- apathy.
What are the worst mental illnesses inherited
A predisposition to mental illness exists only when relatives have had or have similar disorders. The following diseases are inherited:
- epilepsy;
- schizophrenia;
- bipolar personality disorder;
- depression;
- Parkinson's and Alzheimer's disease.
Treatment
Mental deviations and all kinds of dangerous psycho. diseases also require medical support, like other ordinary ailments of the human body. Drugs help patients preserve the remaining parts of the personality, thereby preventing it from further destruction. Depending on the diagnosis, patients are prescribed the following therapy:
- antidepressants - these drugs are prescribed for clinical depression, bipolar disorder or neurosis, they correct mental processes and contribute to improving overall well-being and mood;
- antipsychotics - this group of drugs is prescribed for the treatment of mental disorders (hallucinations, delusions, psychoses, aggression, etc.) by inhibiting the human nervous system;
- tranquilizers - psychotropic drugs that relieve a person of anxiety, reduce emotionality, and also help with hypochondria and obsessive thoughts.
Prevention
In order to prevent the emergence of terrible mental illness, you need to take action in time, watching your mental health. These include:
- responsible pregnancy planning;
- timely identify stress, anxiety, neurosis and the causes of their appearance;
- appropriate mental stress;
- rational organization of work and rest;
- family tree knowledge.
Mental illness in famous people
Not only ordinary people have the most dangerous mental illnesses, but celebrities also have disorders. Top 9 famous people who have suffered or are suffering from psychiatric illnesses:
- Britney Spears (singer) - suffers from bipolar disorder.
- Joan Rowling (author of books about Harry Potter) - took a course of psychotherapy due to prolonged depression.
- Angelina Jolie (actress) - since childhood, she has been experiencing depression.
- Abraham Lincoln (former US President) - fell into clinical depression and apathy.
- Amanda Bines (actress) is sick with bipolar personality disorder, is sick and is treated for schizophrenia.
- Mel Gibson (actor) suffers from manic-depressive psychosis.
- Winston Churchill (former Prime Minister of Great Britain) - periodically he suffered from severe depression.
- Catherine Zeta-Jones (actress) - she is diagnosed with two diseases: bipolar disorder and manic-depressive psychosis.
- Mary-Kate Olsen (actress) - successfully recovered from anorexia nervosa.