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 has an area of 113,998 square miles (295,253 km 2), making it the sixth largest U.S. state. Of Arizona's total area, 0.32% consists of water, which makes Arizona the state with the second lowest percentage of water area (New Mexico is the lowest at 0.19%).hile the upper Gila River is free-flowing, the portion of the river below the Phoenix area is usually either a trickle of completely dry because of the diversion of water for irrigation. The only major dam on the Gila River is Coolidge Dam, located 31 miles (50 km) southeast of Globe, Arizona.