Mental weakness, also known as neurasthenia, is a series of clinical symptoms due to excessive mental stress caused by easy fatigue, easy to be anxious state, long-term mental and psychological stress caused by the long-term tension in the nerves. The common clinical symptoms are mainly the following: 1, related to emotions, such as easily agitated, irritable, insomnia, inattentive, easy to get upset, irritable, insomnia, easy to fatigue. 2, physical symptoms, such as panic, chest tightness, memory loss, easy to appear after the activity of the limbs sore, inattentive, dizzy, headache, forgetfulness, etc.. The symptoms of mental weakness should be well adjusted, do not have too much psychological pressure, learn to combine work and rest, patients with severe symptoms can apply tranquilizing and brain tonic drug therapy, such as tranquilizing and brain tonic tablets, vitamin B family.