There’s fresh evidence that a lot of young people could be headed for heart trouble. A study taken, estimates that by the fourth grade, 10 to 13 percent of U.S. children will have high cholesterol.  Of the preteens studied in Texas, one third of them had borderline or high cholesterol. Half of them will go on to have it as adults, raising their risk for heart attacks, strokes and other problems. Very few people know their entire family history,” and many forms of high cholesterol occur in people who are not obese, so screening is needed to catch more cases. View study results