Weight is largely determined by the balance between how many calories you consume and the amount of energy you burn in everyday activities.

　　体重很大程度上依赖于你每天活动消耗的热量和燃烧的能量之间的平衡。

　　Being overweight can become a matter of live and death. People who are overweight and obese are more likely to develop a number of potentially serious health problems. Also, the overall risk of death increases with obesity.

　　体重过重成为生死的一种因素。那些体重过重及肥胖的人易患一些潜在的严重的健康疾病。同时，死亡的整体风险也在随着肥胖上升。