(KTSM) -- A recent study looked at thousands of children ages eight to 17 for more than a decade. It found an increase of 39 percent with high blood pressure. Researchers said obesity and too much salt is to blame.
"There's a lot of sodium contained in places you wouldn't expect, it's in yogurt, it's in processed food, it's in soup, it's even in breads so you really got to be careful and read food labels, " said Dr. Nancy Cook of Brigham and Women's Hospital.
Children who have high blood pressure are at risk for long term problems like premature heart attack, stroke and kidney disease.