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Why A Sweet Tooth May Have Been An Evolutionary Advantage For Kids
NPR: It's no surprise researchers have shown again and again that kids are more likely than adults to spring for something like a bowl of Fruit Loops. But young kids' preference for extremely sugary foods might be even more biologically ingrained than we thought. Scientists now think that kids' growing bodies may prompt them to crave more sugar — and a child's sweet tooth might be heightened during growth spurts. In a small study, researchers from the Monell Chemical Senses Center in Philadelphia determined what tastes kids prefer by having them rate various soups, sugar waters, jellies and crackers with different levels of salt and sugar.
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Eldar Shafir: Scarcity
BBC Radio: Jo Fidgen interviews psychologist Eldar Shafir about his theories of how scarcity of time and money can both help and harm us. Listen here: BBC Radio
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Expressions of fear and disgust aided human survival, study says
Los Angeles Times: Why do our eyes open wide when we feel fear or narrow to slits when we express disgust? According to new research, it has to do with survival. In a paper published Thursday in the journal Psychological Science, researchers concluded that expressions of fear and disgust altered the way human eyes gather and focus light. They argued that these changes were the result of evolutionary development and were intended to help humans survive, or at least detect, very different threats. To test their hypothesis, study authors examined two dozen volunteer undergraduate students with standard eye-exam equipment, and asked them to mimic expressions of fear and revulsion.
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To Keep Teenagers Alert, Schools Let Them Sleep In
The New York Times: Jilly Dos Santos really did try to get to school on time. She set three successive alarms on her phone. Skipped breakfast. Hastily applied makeup while her fuming father drove. But last year she rarely made it into the frantic scrum at the doors of Rock Bridge High School here by the first bell, at 7:50 a.m. Then she heard that the school board was about to make the day start even earlier, at 7:20 a.m. “I thought, if that happens, I will die,” recalled Jilly, 17. “I will drop out of school!” That was when the sleep-deprived teenager turned into a sleep activist.
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Read This Blog Post In Less Than A Minute!
I am a slow reader, and I would love to read faster. Not poetry or novels obviously—those we should savor. But lots of non-fiction, and certainly the news. There’s simply too much to read in our busy world, and too little time. That’s why I decided recently—like many others apparently—to try an on-line demo of Spritz. Spritz is a soon-to-be-released app for reading text on small screens—and reading it much more rapidly than we’re accustomed to. Spritz makes use of a technology first developed in 1970, called Rapid Serial Visual Presentation, or RSVP, in which each word is presented briefly in the center of the screen in sequence.
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Smartphone App Calms the Nerves
Science Magazine: Cellphones and other mobile devices have gotten a lot of bad press recently for keeping people tethered to stressful workplaces. But a new study suggests that mobile technology might also help tense people chill out. Playing a smartphone gaming app for 45 minutes can reduce anxiety levels in tense individuals, researchers reported online this month in Clinical Psychological Science. Read the whole story: Science Magazine
