When you find yourself or people around the following situations for no reason, we should pay attention to, may be the early symptoms of a disease. 1, sleep abnormality: no reason to insomnia, early waking, too much sleep, dreamy and easy to startle, sleep is not deep, etc.; 2, emotional instability: no reason to irritability, anxiety, irritability, emotional vulnerability, etc.; 3, strange behavior: no reason to appear puzzling words and deeds, such as God is not a guardian of the house, stagnant expression, self-talking and laughing, etc.; 4, personality changes: suddenly appeared in the character of the temperament of the obvious changes, as if a person has changed.