Here is a list of reliable, early sings of stress at work: headache, sleep and attention disturbance, emotional instability, disordered stomach, dissatisfaction, depressed mood. Work and stress are incompatible and inseparable at the same time. What do scientists say about it? Many researches demonstrated that psychologically intensive kinds of work, process monitoring increases the risk of cardiovascular diseases. According to researches in National Institute for Occupational Safety and Health and other there was shown that works concerned with stresses increase the risk of musculoskeletal system, particularly pathology of lumbar parts of a spine and upper extremities. Results of some researches showed that disturbance of mental health frequency (depression or excessive excitement) of representatives of different professions caused by various stress level at work. The frequency is caused by economic differences and disparity in way of life also. Stress conditions are incompatible with safety at work and so lead to industrial injuries. Researches in that direction are still necessary and are being performed actively. So, doctor’s advice not to be nervous is quite appropriate if you are interested in final result.