internal versus external locus of control

Explain what is meant by internal versus external locus of control, including any pertinent considerations from social learning. How does locus of control relate to health (physical and/or mental)? In order for the post to be substantive it should be approximately 15 lines or about 500 words. The discussion post should contain at least two references (from current (current meaning within 5 years (2009-2014) peer reviewed journals). References from books and websites such as,, Wikipedia, dictionaries, encyclopedias, etc. are not allowed.