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Researchers in the U.S. and Spain collaborated on the study of 111 children ages 3 to 8 and found that of all the forms of inactivity they examined, television-viewing was the worst. It was linked to significantly higher blood pressure in children - the more TV kids watched, the higher their blood pressure - and the effect held true regardless of whether a child was heavy or at a healthy weight. What's more, other sedentary behaviors, like using a computer, were not associated with similar blood-pressure hikes, according to the study, which was published in the Archives of Pediatric...
...determine levels of inactivity over one week, the children in the study wore accelerometers, which resemble pedometers but instead of tracking distance, they record the body's acceleration in a vertical plane - sitting results in a score of zero, and walking and running produce progressively higher scores. The researchers considered anything under a score of 50 per day as sedentary. They coupled this data with reports from the children's parents about how much time the kids spent in inactive pursuits, including watching television, sitting at a computer, playing video games, reading or doing other projects that don't require...
...children were sedentary for five hours each day, and 1.5 of those hours were spent in front of a TV, computer or video game, on average. When the researchers further broke down screen time by activity, TV-viewing had the strongest correlation with higher blood pressure. Kids watching from 90 to 330 minutes of television each day had systolic and diastolic blood-pressure readings (the two numbers that indicate pressure caused by blood pumping from the top and bottom chambers of the heart, respectively) that were five to seven points higher than those of children watching less than half...
Eisenmann stresses that while the new study found an association between TV-viewing and higher blood-pressure readings, it did not measure whether children developed hypertension. However, in previous studies involving the same group of children, whom he and the other scientists have been studying for four years, about 20% of the children had developed prehypertension or hypertension - often because of weight gain...
...United States can ensure that India and other countries in its position do not have to choose between higher growth and climate disaster by crafting an agreement that will provide energy investment in the developing world. Such an agreement would mitigate the high costs of an energy transition for poor countries while providing jobs and business opportunities to the United States and Europe, both in desperate need of economic revival. In an era where American manufacturing is on the way out and finance has been rendered incapable of serving as a foundation for our economy, green technology provides an excellent...