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Scientists have [discovered / discovering] that staying in the cold could help us lose weight. Researchers at the University of California found that [exposure / exposed] to the cold increases levels [by / of] a protein that helps form brown fat - the type of fat that generates [heating / heat] and keeps us warm. Brown fat burns energy, which helps us [lose / losing] weight. White fat stores [excess / access] energy, which results in weight gain. The researchers said that because air conditioning and heating [give / gives] us constant, comfortable temperatures, our body's need [for / from] brown fat has decreased. They found that: "Outdoor workers in northern Finland who are exposed [to / for] cold temperature have a significant amount of brown fat when compared [to / for] same-aged indoor workers."

The research was conducted [on / in] two different control groups of mice. One group was [injection / injected] with the protein that helps create brown fat. This group [subsequent / subsequently] gained 30 per cent less weight after both groups were [feeding / fed] high-fat diets. The researchers say this could be good news in the fight [for / against] obesity. People who are obese have lower [levels / level] of brown fat than thinner people. Head researcher Hei Sook Sul said: "This protein could become an [important / importance] target for research into the treatment and prevention of obesity and obesity-[related / relation] diseases." She added: "If you can somehow increase levels of this protein…you could [possible / possibly] lose more weight even if eating the same [amount / mountain] of food."