PURE AIR: Pollute what man breathes with smog, radiation, cigarette smoke, synthetic perfumes, etc.
SUNLIGHT: Encourage humans to remain indoors as much as possible. Teach them to believe that sunlight is dangerous "causes skin cancer", etc. This is especially important because Jesus, the "Sun of Righteousness", needs to be perceived as dangerous.
WATER: Encourage humans to drink anything but pure water--especially "brown" drinks, such as coffee, tea, colas, beer, etc.
EXERCISE: Keep people so preoccupied with "TriVial" matters that they don't "have time" to get wholesome exercise. Fill their bodies with so many toxins that they don't have any energy with which to exercise.
REST: Create an unstable economy, as well as an unhealthy desire for amusements and unnecessary things, so that even though one might work overtime, there is never enough money to supply one's "needs".
TEMPERANCE: Encourage a constant desire for "too much", thus promoting drunkenness, greed, pride, licentiousness, and every other form of intemperance.
PROPER DIET: "Infiltrate" originally good foods with lots of man-made dangerous chemicals, so that humans think they are getting good nutrition while they are being poisoned. Go a step further and create entirely synthetic "foods" which appear similar their natural counterparts, (e.g. "Kool-Aid" instead of natural fruit juice).
TRUST IN GOD: Propagate lots of "news" (true or false) about anything which will generate fear, anxiety, distrust, worry, or anger in the hearts of those who hear it. This will help to extinguish faith in both God and man.