Stress may result from a large number of factors including but not limited to:
Various factors including allergens, bacteria and viruses, chemicals, dehydration, emotional issues, employment, exercise, fast foods, financial problems, fungi, genetically altered foods, headaches, heavy metals, irradiation of foods, lack of sleep, low self-concept, medical conditions, microwave radiation, nutritional deficiencies, overworking, pain, parasites, prescription drugs, psychological conditions, and relationship problems can cause stress.