Frequent Internet and social media users do not have higher stress levels than those who use technology less often. And for women, using certain digital tools decreases stress. [NY Times]
Memory has to be ‘turned on’ in order to remember even the simplest details, a new study finds. When not expecting to be tested, people can forget information just one second after paying attention to it. But, when they expect to be tested, people’s recall is doubled or even tripled. [PsyBlog]
The idea that unconscious thought is sometimes more powerful than conscious thought is attractive, and echoes ideas popularized by books such as writer Malcolm Gladwell’s best-selling Blink. But within the scientific community, ‘unconscious-thought advantage’ (UTA) has been controversial. Now Dutch psychologists have carried out the most rigorous study yet of UTA—and find no evidence for it. […] The report adds to broader concerns about the quality of psychology studies and to an ongoing controversy about the extent to which unconscious thought in general can influence behaviour. [Scientific American]
Sex in reptiles and fish is determined after conception, during embryogenesis, according to ambient environmental temperature. In contrast, in mammals and birds, sex is determined at conception. In mammals, male births invariably occur slightly in excess […] with approximately 3% more males born than females. The reason for this discrepancy is uncertain as testicles produce equal numbers of X-bearing and Y-bearing spermatozoa. […] We have shown that M/F varies in geographical space, exhibiting a latitude gradient, and that this gradient is different in Europe and North America, with more males born towards the south of Europe, compared with the North American continent where more males are born towards the north of the continent. Other studies have also shown that M/F may vary with time. Several authors have shown that M/F has declined over the second half of the 20th century in various industrialised countries. These include Denmark, the United Kingdom, the Netherlands, Germany, Canada, the United States of America, and Finland. In contrast, M/F has been noted to have risen in Ireland over the same period. A non-significant rise in M/F has also been noted in Australia and Japan. [J Epidemiol Community Health]
A wide variety of factors have been shown to influence the male to female ratio at birth, which invariably displays a male excess. […] It will be shown that stress, including stress related to political events, influences this ratio. [Early Human Development]
In an earlier experimental study by Zillman and Bryant (1988) male and female students were exposed to pornography once a week for six weeks. Those who viewed pornography reported being less satisfied with their partner’s appearance and sexual behavior. They also found that men who consumed pornography were more dominating and less attentive toward their partners. Hence, there is some reason to anticipate that pornography consumption impairs relationship commitment.
Other research suggests that pornography may be beneficial to relationships in some ways, especially in sexual relations. Some evidence suggests that consuming pornography influences individuals’ positive attitude toward sexuality and serves as a safe platform through which to en- gage in sexual exploration. […] Using a variety of methods, we demonstrated that pornography consumption is associated with weakened commitment to one’s relationship partner. […] in Study 5 we examined a more extreme implication of the weakened commitment—infidelity. We found that pornography consumption corresponded to decreased commitment, which, in turn related to higher levels of infidelity. [Journal of Social and Clinical Psychology | PDF]
The weather impacts not only upon our mood but also our voice. An international research team has analysed the influence of humidity on the evolution of languages.
Their study has revealed that languages with a wide range of tone pitches are more prevalent in regions with high humidity levels. In contrast, languages with simpler tone pitches are mainly found in drier regions. This is explained by the fact that the vocal folds require a humid environment to produce the right tone. The tone pitch is a key element of communication in all languages, but more so in some than others. German or English, for example, still remain comprehensible even if all words are intonated evenly by a robot. In Mandarin Chinese, however, the pitch tone can completely change the meaning of a word. [EurekAlert]
Hygiene—keeping both home and body clean—is one of the best ways to curb the spread of bacterial infections, but lately consumers are getting the message that washing with regular soap is insufficient. Antibacterial products have never been so popular. Body soaps, household cleaners, sponges, even mattresses and lip glosses are now packing bacteria-killing ingredients, and scientists question what place, if any, these chemicals have in the daily routines of healthy people. […] Good, long-term hygiene means using regular soaps rather than new, antibacterial ones, experts say. “The main way to keep from getting sick,” Gustafson says, “is to wash your hands three times a day and don’t touch mucous membranes.” [Scientific American]
Doctors die, too. What's unusual about them is not how much treatment they get compared with most Americans, but how little. Why Doctors Die Differently
Every person grows older with time, but some people may have the wish to grow old faster. So, this article is for those people. On the contrary, if you want to feel young and good, do the opposite as mentioned in this article. [ Say People]
Hitler suffered from uncontrollable flatulence. His health issues only got worse after meeting Dr. Theodor Morell.
The subtitle reads: "The surgical and neoplastic role of cacao extract in breakfast cereals." Shrime submitted the article to 37 journals over two weeks and, so far, 17 of them have accepted it. They have not "published" it, but say they will as soon as Shrime pays the $500. This is often referred to as a "processing fee.”
The philosopher Socrates remains, as he was in his lifetime (469–399 B.C.E.), an enigma, an inscrutable individual who, despite having written nothing, is considered one of the handful of philosophers who forever changed how philosophy itself was to be conceived. […] The extant sources agree that Socrates was profoundly ugly, resembling a satyr more than a man—and resembling not at all the statues that turned up later in ancient times and now grace Internet sites and the covers of books. He had wide-set, bulging eyes that darted sideways and enabled him, like a crab, to see not only what was straight ahead, but what was beside him as well; a flat, upturned nose with flaring nostrils; and large fleshy lips like an ass. Socrates let his hair grow long, Spartan-style (even while Athens and Sparta were at war), and went about barefoot and unwashed, carrying a stick and looking arrogant. […] Something was peculiar about his gait as well, sometimes described as a swagger so intimidating that enemy soldiers kept their distance. He was impervious to the effects of alcohol and cold, but this made him an object of suspicion to his fellow soldiers on campaign. […] What seemed strange about Socrates is that he neither labored to earn a living, nor participated voluntarily in affairs of state. Rather, he embraced poverty and, although youths of the city kept company with him and imitated him, Socrates adamantly insisted he was not a teacher and refused all his life to take money for what he did. […] Because Socrates was no transmitter of information that others were passively to receive, he resists the comparison to teachers. Rather, he helped others recognize on their own what is real, true, and good—a new, and thus suspect, approach to education. He was known for confusing, stinging and stunning his conversation partners into the unpleasant experience of realizing their own ignorance, a state sometimes superseded by genuine intellectual curiosity. […] Socrates was usually to be found in the marketplace and other public areas, conversing with a variety of different people—young and old, male and female, slave and free, rich and poor—that is, with virtually anyone he could persuade to join with him in his question-and-answer mode of probing serious matters. […] It did not help matters that Socrates seemed to have a higher opinion of women than most of his companions had, speaking of “men and women,” “priests and priestesses,” and naming foreign women as his teachers: Socrates claimed to have learned rhetoric from Aspasia of Miletus, the lover of Pericles; and to have learned erotics from the priestess Diotima of Mantinea. […] Athenian citizen males of the upper social classes did not marry until they were at least thirty, and Athenian females were poorly educated and kept sequestered until puberty, when they were given in marriage by their fathers. Thus the socialization and education of males often involved a relationship for which the English word ‘pederasty’ (though often used) is misleading, in which a youth approaching manhood, fifteen to seventeen, became the beloved of a male lover a few years older, under whose tutelage and through whose influence and gifts, the younger man would be guided and improved. It was assumed among Athenians that mature men would find youths sexually attractive, and such relationships were conventionally viewed as beneficial to both parties by family and friends alike. A degree of hypocrisy (or denial), however, was implied by the arrangement: “officially” it did not involve sexual relations between the lovers and, if it did, then the beloved was not supposed to derive pleasure from the act—but ancient evidence (comedies, vase paintings, et al.) shows that both restrictions were often violated. What was odd about Socrates is that, although he was no exception to the rule of finding youths attractive, he refused the physical advances of even his favorite. [Stanford Encyclopedia of Philosophy]
The flat white coffee drink was $4. A suggested tip was $3. The cashier at Café Grumpy, a New York City coffeehouse, swiped the credit card, then whirled the screen of her iPad sales device around to face the customer. “Add a tip,” the screen commanded, listing three options: $1, $2 or $3. In other words: 25 percent, 50 percent or 75 percent of the bill. […] New York City taxi riders paying with plastic are confronted with buttons for 20 percent, 25 percent or 30 percent tips. Anything less has to be manually entered (and calculated by the passenger). […] In December, an Italian restaurant in Los Angeles, Alimento, took a different approach. It added a second gratuity line to diners’ checks — “tip” (for the server) and “kitchen” (for the traditionally untipped workers in the back). […] In March, a Silicon Valley company opened ChangeTip, a platform that allows people to send small Bitcoin payments through social media, email, Skype or text to show their appreciation for content creators (or anyone) on the Internet. The service has been growing about 30 percent a month and now has about 60,000 users who have collectively tipped over $250,000, said Nick Sullivan, founder and chief executive. The average payment, he said, was a little over $1. [NY Times]
If the decision-making algorithm were to always choose the option in which the fewest people die, the car might avoid another car carrying two passengers by running off the road and risking killing just one passenger: its own. Or it might choose to hit a Volvo instead of a Mini Cooper because its occupants are more likely to survive a crash, which means choosing the vehicle that is more dangerous for its owner to plow into. [NY Times]