小调查

小调查

“SIXTH SENSE” IS REAL

Scientists have known about a gene called PIEZO2 for 100 years, but a new study shows how it controls our '6th sense' of spatial awareness. NIH scientists discovered this by testing two girls who lack the gene, and neither of the girls can walk or reach for something when blindfolded. (dailymail.co.uk)基因决定“第六感”科学家们最近发现，人体的PIEZ02基因关联着人的“第六感”，控制人的触觉和本体感觉，也就是“第六感”。主要研究对象是两名没有PIEZ02 基因的女孩，她们因此出现行动和平衡障碍，还有部分触觉缺失。

WHEN YOU STAY IN TOUCH WITH YOUR EX

Lindsay Rodriguez and her colleagues surveyed young adults in romantic relationships and came up with the conclusion that greater longing for an ex is associated with decreases in satisfaction with your current partner over time, and decreases in satisfaction over time are associated with increases in longing for an ex. (Psychology Today)分手后与前任保持联系对健康不利不少人信奉“分手亦是朋友”，但美国一项研究显示，和前任保持联系不是什么好事。南佛罗里达大学心理学家琳赛· 罗德里格斯与同事一起调查了429 名成年人。超过四成的人承认仍与上一任恋人保持联系。研究人员警告说，与前任藕断丝连对自己的心理健康不利，虽然联系后会暂时获得安全感，但会让自己更难走出分手的阴影。

“FIVE-SECOND RULE” FOR FOOD ON FLOOR IS UNTRUE

Rutgers University researchers have disproven the widely accepted notion that it's okay to scoop up food and eat it within a “safe” five-second window. Researchers found that moisture, type of surface and contact time all contribute to cross-contamination. In some instances, the transfer begins in less than one second.（Rutgers）“5 秒定律”系以讹传讹？食物掉地上1 秒被污染民间流传的“5 秒定律”认为，若食物不慎掉在地上，因细菌转移至食物上需时，只要5 秒内取起仍可安全食用。不过，研究称，该定律是以讹传讹。美国新泽西州罗格斯大学研究显示，细菌不足1 秒便可污染掉在地上的食物。

BABIES WITH LARGER HEADS HAVE BETTER COGNITIVE ABILITY

Scientists at UK Biobank studied 100,000 Britons to see if there is a link between their genes and their achievements. They found that those with larger heads were “significantly”more likely to get a degree, as well as score higher on verbal-numerical reasoning tests. (Huffington Post)头大的宝宝更聪明？脑容量越大智商越高科学家发现，婴儿出生时头的大小与今后的成就有密切关系，头围越大，脑容量越大，智商就越高。英国生物医学库对10 万名英国人进行了长期的研究，以找出人的基因、身体和精神健康状况与人生道路之间的关系。