The principle of "Occam's Razor" is a concept which is used for the optimum solution. The essence of the reception is to choose the simplest and hence the correct solution among of many solutions. In the field of medicine the essence of the principle is that "if you hear hoofbeats, then it is likely the horse, not zebra." This means that the list of symptoms you need to choose the most basic. Do not assume just very rare disease in the world - for example, the presence of complaints of headache and sensitivity to light and sound, most likely, evidence of migraine.
Pica is a condition when a person instead of the traditional food containing vitamins, trace elements and minerals, eats ground, paint, paper, or money. Eating such food, put people at risk of internal injuries in the form of cuts and breaks. In addition, they suffer from malnutrition, perverted appetite syndrome - a disease that occurs in childhood and lasts no more than a year. If children have a psychological disorder, the disease can take place much longer. Psychiatrists treat these illnesses.
Alice in Wonderland syndrome is a disease when the brain perceives the surrounding objects distorted. A person suffering from this disease, believes that things and people are reduced or grow to gigantic proportions right before his/her eyes. Patient may also suffer tactile and auditory hallucinations. This syndrome can develop if person is suffering from migraine and epilepsy for a long time.
Alien hand syndrome is a disease associated with mental disorders. Man accepts one or both hands as part of the body, who live their lives. The cause of this disease can be the result of surgery to the brain or epilepsy when the communication between the two hemispheres of the brain is disturbed and the person is unable to control the movements of the arms. People who have gone through such a state, say they felt as one or even both hands do not obey.
People who have the syndrome of congenital insensitivity to pain, absolutely do not feel pain. Many think it is a gift of fate, but you must know that the body responds to pain disease. The brain sends signals to specific locations in the body, so that people protect themselves from the causes of pain, such as jerked his hand away not to get burned. If a person suffer from a syndrome insensitivity to pain, the consequences can be fatal.