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, Arizona â South Mountain Park. With 16,283 acres, this is the largest city park in the United States. The land making up South Mountain Park was purchased and developed throughout the 20âs and 30âs. South Mountain Park is part of the Sonoran desert, with 58 miles of trails available to hikers and bikers. Look for petroglyphs throughout the park.