ENN
Environmental News Network -- Know Your Environment
Around 252 million years ago, life on Earth collapsed in spectacular and unprecedented fashion, as more than 96 percent of marine species and 70 percent of land species disappeared in a geological instant. The so-called end-Permian mass extinction — or more commonly, the “Great Dying” — remains the most severe extinction event in Earth’s history.
In their quest for healthy eating, many Americans are turning to restrictive diets – from vegan to Paleo to low-carb – that they believe are the most “pure” or beneficial. But when people decide to go beyond these and severely limit the types of foods they consume, they could be putting themselves at risk for nutritional deficiencies.
People who obsessively refine and restrict their diet to conform to their ideal of what is healthy could be suffering from orthorexia nervosa – which translates from Greek as “correct appetite.”
Prolonged sitting time as well as reduced physical activity contribute to the prevalence of non-alcoholic fatty liver disease (NAFLD) in a study of middle-aged Koreans. These findings support the importance of both reducing time spent sitting and increasing physical activity, say researchers. Their results are published in the Journal of Hepatology.
Physical activity is known to reduce the incidence and mortality of various chronic diseases. However, more than one half of the average person's waking day involves sedentary activities associated with prolonged sitting such as watching TV and using the computer and other devices.
¿Quiere papas fritas con su refresco de dieta? Usted no está solo, y podría no estar "ahorrando" tantas calorías como usted piensa consumiendo bebidas de dieta.
Un nuevo estudio que examinó los hábitos alimenticios de más de 22,000 adultos estadounidenses encontró que los consumidores bebidas de dieta pueden compensar la falta de calorías en sus bebidas tomando comidas extra cargadas con azúcar, sodio, grasa y colesterol.
Aviation history has just been made. Earlier this summer I told you about the record breaking solar plane flight, and now the solar eagle has landed again—this time at an airport in India that just became the first airport in the world to completely operate on solar power.
Go India!
Aquellos de ustedes que pasan horas en el gimnasio con el objetivo de quemar tantas calorías como sea posible, podrían estar decepcionados al saber que su sistema nervioso está subconscientemente trabajando en contra de usted. Los investigadores informan en la Revista Cell Press Current Biology, haber encontrado que nuestros sistemas nerviosos son muy hábiles para cambiar la forma en que nos movemos con el fin de gastar la menor cantidad de energía posible. En otras palabras, los seres humanos están programados para la pereza.
