Stress is typically caused by external events and situations that are painful or overwhelming, and that leave you feeling out of control.
External causes of stress:
Burnout on the job;
Family illness and grief;
Separation or divorce.
Minor stresses range from having arguments to getting stuck in traffic jams.
Even a positive experience-marriage, a job promotion, or a new baby-can trigger stress. Internal causes of stress:Personal illness;
The drive to excel.