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.
Phoenix occupies a total of 516.7 square miles and is home to 1,445,632 according to the most-recent census figures from 2010. In addition to being the 10th largest city in the U.S. Phoenix is the largest city in Arizona and also serves as the stateâs capital. Phoenix also holds the title as the 6th most populous city in the United States.