The studies on psycho-social factors provide some information as far as the possibility that the marriage, the familiar relations, the social relations of work and, the financial problems, the diseases and injuries, etc., cause stress. The stress causes are different in the diverse ages, for example, in the young adult, the stress sources are in the marriage or the relation of parents and children, the relations in the work and the struggle to obtain an economic stability; in the mature age, the approach changes to the modifications in the marital relations, the problems with the parents who age and the relations with its descendants of young adults who are finding situations estresantes; in the age outpost, it is probable that the main preoccupations are the retirement, the loss of the physical conditioning, the greater personal losses and the death thoughts.

An individual can react to stress with anxiety or depression, developing a physical symptom, moving away, taking a drink, initiating an adventure, or in other limitless forms. Answers subjective common are fear (to the repetition of the event that causes stress), fury (in the frustration), blames (on aggressive impulses) and suffers (by the hopelessness). Acute stress can be pronounced by the restlessness, irritability, fatigue, greater reaction of the scare and a feeling of tension.

The incapacity to concentrate itself, the upheavals of the dream (insomnia, nightmares) and the somatic preoccupations lead frequently to the automedicación, more commonly with alcohol or other depressing of the central nervous system. The conduct of bad adaptation to stress denominates adjustment upheaval, specifying the main symptom, for example, "upheaval of adjustment with depressed spirit".