Questões de Vestibular de Inglês - Sinônimos | Synonyms

      In today’s political climate, it sometimes feels like we can’t even agree on basic facts. We bombard each other with statistics and figures, hoping that more data will make a difference. A progressive person might show you the same climate change graphs over and over while a conservative person might point to the trillions of dollars of growing national debt. We’re left wondering, “Why can’t they just see? It’s so obvious!”

      Certain myths are so pervasive that no matter how many experts disprove them, they only seem to grow in popularity. There’s no shortage of serious studies showing no link between autism and vaccines, for example, but these are no match for an emotional appeal to parents worried for their young children.

      Tali Sharot, a cognitive neuroscientist at University College London, studies how our minds work and how we process new information. In her upcoming book, The Influential Mind, she explores why we ignore facts and how we can get people to actually listen to the truth. Tali shows that we’re open to new information – but only if it confirms our existing beliefs. We find ways to ignore facts that challenge our ideals. And as neuroscientist Bahador Bahrami and colleagues have found, we weigh all opinions as equally valid, regardless of expertise.

      So, having the data on your side is not always enough. For better or for worse, Sharot says, emotions may be the key to changing minds.

                                          (Shankar Vedantam. www.npr.org. Adaptado.)

Examine a tira para responder à questão.

Question: Is there anything I can do to train my body to need less sleep?

Karen Weintraub

June 17, 2016

   Many people think they can teach themselves to need less sleep, but they’re wrong, said Dr. Sigrid Veasey, a professor at the Center for Sleep and Circadian Neurobiology at the University of Pennsylvania’s Perelman School of Medicine. We might feel that we’re getting by fine on less sleep, but we’re deluding ourselves, Dr. Veasey said, largely because lack of sleep skews our self-awareness. “The more you deprive yourself of sleep over long periods of time, the less accurate you are of judging your own sleep perception,” she said.

   Multiple studies have shown that people don’t functionally adapt to less sleep than their bodies need. There is a range of normal sleep times, with most healthy adults naturally needing seven to nine hours of sleep per night, according to the National Sleep Foundation. Those over 65 need about seven to eight hours, on average, while teenagers need eight to 10 hours, and school-age children nine to 11 hours. People’s performance continues to be poor while they are sleep deprived, Dr. Veasey said.

   Health issues like pain, sleep apnea or autoimmune disease can increase people’s need for sleep, said Andrea Meredith, a neuroscientist at the University of Maryland School of Medicine. A misalignment of the clock that governs our sleep-wake cycle can also drive up the need for sleep, Dr. Meredith said. The brain’s clock can get misaligned by being stimulated at the wrong time of day, she said, such as from caffeine in the afternoon or evening, digital screen use too close to bedtime, or even exercise at a time of day when the body wants to be winding down.

(http://well.blogs.nytimes.com. Adaptado.)