According to psychological lore（知识，学问） , when it comes to items of information the mind can cope with before confusion sets in, the magic number is seven. But a new analysis by a leading Australian psychiatrist challenges this long-held...
Animals, including humans, actively select the gut microbes that are the best partners and nurture them with nutritious secretions（分泌物） , suggests a new study led by Oxford University, and published November 20 in the open-access journal PL...
The human nose has millions of olfactory（嗅觉的） neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant receptor plug into one region...
Joint research between the University of Michigan and the Argentina-based National Council of Science and Technology (CONICET) has shed light on one of the most frustrating mysteries of weight loss -- why the weight inevitably comes back. A novel ani...
Topaz（黄晶，黄玉） is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine（氟）. Gem topaz is valuable. Jewelers call this variety of the stone precious topaz. The best-known precious topaz gems range in color f...
Women are twice as likely as men to use emoticons（情感符） in text messages, according to a new study from Rice University. Emoticons are graphic symbols that use punctuation marks（标点符号） and letters to represent facial expressions t...
Humans' superior brain size in comparison to their chimpanzee cousins traces all the way back to the womb. That's according to a study reported in the September 25 issue of Current Biology, a Cell Press publication, that is the first to track and com...
Men with divorced parents are significantly more likely to suffer a stroke than men from intact（完整的） families, shows a new study from the University of Toronto. The study, to be published this month in the International Journal of Stroke, s...
Attention men: The day may be coming soon when you can take your own birth control pill with no side effects, according to a study done by a group of scientists that includes a Texas AM University researcher. Qinglei Li, an assistant professor in Tex...
People with Parkinson's disease performed markedly better on a test of working memory after a night's sleep, and sleep disorders can interfere with that benefit, researchers have shown. While the classic symptoms of Parkinson's disease include tremor...
