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.
Arizona is located in the Southwest U.S. Mexico is to the south, California and part of Nevada is to the west, Utah is to the north, and New Mexico is to the east. Arizona is 113,909 square miles, making it the 6th largest state in the country. The State of Arizona is shown on the map in red.