Best Answer: There are many factors that can weaken your immune system, depression certainly wont strengthen it. But here are some other factors that may cause your immune system to be bad, or increase your risk to illnesses.
ARIZONA'S PUBLIC LANDS -- BOTH BLESSING AND BURDEN. Arizona covers 72.6 million acres and is the 6th largest state (after Alaska, Texas, California, Montana and New Mexico); but only 15 states have fewer people. Land for growth ought to be plentiful, yet in Arizona there is a short supply in many communities where it is needed most.
The state of Alaska covers an area totaling 424,491,520 acres; largest of the 50 states. Alaska's total land and water area covers 424,491,520 acres. America is a country that has about 11.77 acres per person. 375 million acres.   2.5 per acre   2.5 cents per acre About two cents per acre.