阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或用括号中词语的正确形式填空，并将答案填写在答题卡标号为1～10的位置上。
Scientists have discovered that ______(stay) in the cold could help us lose weight. Researchers at the University of California found that exposure to the cold increases levels of a protein that helps form brown fat -------- the type of fat that produces heat and keeps us warm. Brown fat burns energy, _______ helps us lose weight. White fat stores extra energy, which results ______ weight gain. The researchers said that because air conditioning and heating give us constant, _______ (comfort) temperatures, our body's need for brown fat has decreased. They found that: "Outdoor workers in northern Finland who ______ (expose) to cold temperature have ______ significant amount of brown fat when ______ (compare) to same-aged indoor workers."
The research was conducted on two different control groups of mice. ______ group was injected with the protein that helps create brown fat. This group later gained 30% less weight after both groups were fed high-fat diets. The researchers say this could be good news in the fight against obesity. People who are obese have _______（low) levels of brown fat than thinner people. Head researcher Hei Sook Sul said: "This protein could become an important target for research into the treatment and prevention of obesity and obesity-related diseases." She added: "If you can somehow increase levels of this protein, you could ______ (possible) lose more weight even if eating the same amount of food."