问题详情

A new study found that inner-city kids living in neighborhoods with more green space gained about 13% less weight over a two-year period than kids living amid more concrete and fewer trees. Such 【C1】______ tell a powerful story. The obesity epidemic began in the 1980s, and many people 【C2】______ it to increased portion sizes and inactivity, but that can"t be everything. Fast foods and TVs have been 【C3】______ us for a long time. "Most experts agree that the changes were 【C4】______ to something in the environment," says social epidemiologist Thomas Glass of the Johns Hopkins Bloomberg School of Public Health. That something could be a 【C5】______ of the green.
The new research, 【C6】______ in the American Journal of Preventive Medicine, isn"t the first to associate greenery with better health, but it does get us closer 【C7】______ identifying what works and why. At its most straightforward, a green neighborhood 【C8】_____ means more places for kids to play—which is 【C9】______ since time spent outdoors is one of the strongest correlates of children"s activity levels. But green space is good for the mind 【C10】______ ;research by environmental psychologists has shown that it has cognitive 【C11】______ for children with attention-deficit disorder. In one study, just reading 【C12】______ in a green setting improved kids" symptoms.
【C13】______ to grassy areas has also been linked to 【C14】______ stress and a lower body mass index (体重指数) among adults. And an 【C15】______ of 3,000 Tokyo residents associated walkable green spaces with greater longevity (长寿) among senior citizens.
Glass cautions that most studies don"t 【C16】______ prove a causal link between greenness and health, but they"re nonetheless helping spur action. In September the U. S. House of Representatives 【C17】______ the delightfully named No Child Left Inside Act to encourage public initiatives aimed at exposing kids to the outdoors.
Finding green space is not 【C18】______ easy, and you may have to work a bit to get your family a little grass and trees. If you live in a suburb or a city with good parks, take 【C19】______ of what"s there. Your children in particular will love it—and their bodies and minds will be 【20】______ to you.
【C1】
A．findings
B．theses
C．hypotheses
D．abstracts