Word: explaining
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...called reference-income hypothesis holds that it's not simply how much money you make that contributes to satisfaction, but how much more money you make than, say, the national average. The higher your salary than the norm, the happier you tend to be. That could explain in part why populations as a whole do not experience sunnier dispositions with economic growth, since a majority of individuals may not fall above the national income average...
...might this relate to humans? Actually, mild stress has been shown to improve learning in people; too much does the opposite. Smith wonders whether the discovery may help explain certain learning declines, like the drop-off in the ability to learn to speak a foreign language without an accent, which occurs sometime around puberty...
...learn new things at puberty might merely reflect the fact that teenagers are becoming more attuned to social issues than dull learning tasks: "It may be a shift in what we pay attention to and are motivated to look at that's driving this." But that would not explain Smith's mice or similar biochemical changes she has observed in tissue samples related to learning. (There's no question of motivation in a petri dish...
After barely two months in office, Virginia’s attorney general seems to have determined that his state’s legal policies are not controversial enough. How else to explain his decision to send a letter to Virginia universities and colleges instructing them to ban protections on gay rights? In the document, Attorney General Kenneth T. Cuccinelli II advised that, “The law and public policy of the Commonwealth of Virginia prohibit a college or university from including ‘sexual orientation,’ ‘gender identity...
...They are backed by a growing body of research. A study this year found that just 17% of European shoppers look for nutritional information when they buy food. Another study showed that although 75% of consumers in France say they are interested in nutrition, a full 84% could not explain what a carbohydrate is. And another study, conducted in Australia last year, indicated that people were five times as likely to identify healthy food options when they see color-coded nutrition labels. (See the most underreported stories...