In the latest column by UTMB’s Dr. Victor S. Sierpina: If I were to tell you that up to 70 percent of all visits to a doctor are now thought to have a predominantly a single cause, what might you guess? Infections? Genetics? Drug-seeking behavior? Heart disease? Cancer? Diabetes? Pain? As Maxwell Smart, the wise-cracking detective in the old TV series “Get Smart,” used to say, “would you believe …” lifestyle factors contribute to or cause the vast majority of illness requiring medical attention? In fact, there is even a new field of medicine named Lifestyle Medicine.