Movement disorders are a phenomenon of decreased or complete loss of control of muscles in the body such as the tongue, lips, face, trunk, limbs, etc., making it difficult for the patient to perform daily activities. Any damage to the brain in the area responsible for movement-related functions can cause movement disorders. Movement disorders depend on the extent and location of brain damage.

Huntington's chorea is one of the diseases that greatly affects human functional activities in terms of action, psychology and cognition.

Dystonia is a movement disorder caused by neurological problems. The disease is sometimes difficult to detect because its clinical symptoms are similar to those of many other diseases.

Research shows that we all, to some extent, have an inherent desire to cultivate positive personality traits (like extroversion, optimism, and charisma) and minimize negative traits (like pessimism and neuroticism).