So I don't know if you guys have heard this but it's a common statistic that mental illness can take 7 to 25 years off someone's life span. 

These are, from what I read, due to things like obesity,  heart problems,  smoking, substance abuse, and suicide.

I have a question though. If you are mentally ill and make a conscious effort to take care of your physical and mental health, do you have as much of a chance at a normal life span as the general population? Is it possible to have mental illness and live a full life?