• Inhalants: pollens, flowers, perfumes, dust, paint. Formaldehyde, etc.

• Ingestants: food, drink, vitamins, drugs, food additives, etc.

• Contactants: fabrics, chemicals, cosmetics, furniture, utensils, etc.

• Ingectans: insect bites, stings, ingectable drugs, immunizations, etc.

• Infectants: viruses, bacteria, contact with infected persons, etc.

• Physical Agents: heat, cold, humidity, dampness, fog, wind, dryness, sunlight, sound, etc.

• Genetic Factors: inherited illnesses or tendency from parents, grandparents, etc.

• Molds and Fungi: molds, yeast, candida, parasites, etc.

• Emotional Factors: painful memories of various incidents from past and present.

Above information is quoted from Dr. Devi  S. Nambudripad 

 “SAY GOODBYE TO ILLNESS (2002) EDELTA PUBLISHING, CO