HCR Update from Mark Sanna: Research presented at the World Heart Federation's World Congress of Cardiology today suggests that children who spend over 2 hours in front of a TV, computer or video games each day have a significantly increased chance of having high blood pressure. The researchers, led by Dr. Gilles Paradis, of McGill University in Canada, say such children have over a 2.5-fold increase in odds of having high blood pressure (BP), while children with a low level of fitness had odds 3.4 times higher, compared with children with a high level of fitness.