ST. PAUL, Minn., July 31 (UPI) -- Doctors are routinely "underdosing" statins for patients at risk for heart attacks and strokes due to elevated levels of "bad" cholesterol, even though the drugs have proven safe and effective, a top U.S. researcher maintains. At a time when an estimated 40% of U.S. adults have metabolic syndrome -- a combination of heart risk factors including obesity, hypertension, dyslipidemia and insulin resistance -- doctors usually don't start them off with the maximum