Factors that affect the immune system

Here is something I found online that will definitely help keep us healthy. Stuff that we have to avoid to keep our immune system as healthy as possible. To the people like me who are living with HIV/AIDS, read carefully below. I know that we can no longer save our immune system, but at least, we can decelerate its shut down by natural means.

Factors that Affect the Immune System

GOOD:
Natural diet, happiness and serenity, high morale, a positive attitude, adequate rest and sleep, fresh air, physical exercise.

ADVERSE:

I. MOST COMMON

1.) toxemia from dietary errors, constipation.
2.) dietary deficiencies, in particular Vitamin C; worry.
3.) chemicals from different sources including fluoride, chlorine, etc in water supplies, pesticide residues in food, other chemicals in food; and
4.)medicine--aspirin, tranquilizers, cough mixtures, etc.

II. MORE SEVERE

1.) alcohol
2.) smoking
3.) overweight
4.) overwork, fatigue
5.) mental trauma--anger, pain, worry, frustration, grief, fear.
6.) physical trauma--sexual excesses, excessive athletic training, prolonged discomfort, heat, cold.
7.) chemical trauma--mercury in amalgam tooth fillings, poisons from infected teeth, poisons from insect bites, ticks, etc, septicemia, common medicines, prescription medicines, antibiotics, vaccinations.

III. VERY SEVERE

1.) severe malnutrition--junk food, high sugar, high salt, high fat, high cholesterol, severe vitamin C deficiency.
2.) all drugs used habitually whether taken intravenously, orally or inhaled, including marijuana, etc and antibiotics.
3.) bereavement, low self-esteem, guilt, hopelessness and
mental trauma of voodoo or bone-pointing death sentence by shaman, witch doctor, or modern physician.

After reading this, I thought that I am already killing myself with items II. 1,2,3,4,5 and items III. 3 - "bereavement, low self-esteem, guilt, hopelessness"

source: http://chestofbooks.com/health/natural-cure/Ross-Horne/Health-and-Survival-in-the-21st-Century/