SSS 2012-02-02（在线收听）

 This is scientific American sixty seconds sicience. I am Cynthia Graber.That's all just take a minute.There is an easy way to acarch people to take stairs to stand elevator put a sign to remind them to. Study have found that science works but those efforts turn the different traits between up and down trips and that including a variety building types and population. Study turn the last one enough. So, researches did a new study in the three New York structures and three struc the house knike eight struc academic building and ten struc housing sites.There are starbish base lands how many trips left from or return to the lobby. Then the sent rise up, burn callory not the electricty take the stairs.A week later, significantly more people djust that.and nine months later, the research check the strateries that was deal up and what it is.The health care center have 20 percent increase in virtical claims and the fortibal healthy units has danged the 42 percent over orikyson stay areas. The researchers published the American general of preventive medicine. New York City have sent distribute thousands of such stair signs to city buildings and nearly free intervention for the air population. Thanks for the minute for scientical America sixty seconds science. I am Cynthia Graber.