Calorie-dense processed foods and growing portion sizes coupled with pervasive marketing lead to passive overeating.
高热量的加工食品、不断增加的食物分量和多样的食物市场共同导致了消极的过度饮食。
And scarce resources,and a lack of access to healthy,affordable foods creates an even greater risk in disadvantaged communities.
而在贫困的社区，食物资源的匮乏和得到健康又不太昂贵的食物的途径有限，大大提升了出现问题的风险。
Yet,our genetic makeup also plays a part.Studies on families and on separated twins have shown a clear causal hereditary relationship to weight gain.
还有，我们基因组成也有一定作用。研究成长在不同家庭的双胞胎明确显示遗传和体重增加的关系。
Recent studies have also found a link between obesity and variations in the bacteria species that live in our digestive systems.
最近的研究也找到了肥胖和我们消化系统中细菌种类变化的联系。
No matter the cause,obesity is an escalating global epidemic.It substantially raises the probability of diseases,like diabetes,heart disease,stroke,high blood pressure,and cancer.
无论何种原因，肥胖是一种逐步升级的全球性流行病。它更极大地提高了患上其他疾病的可能性，如糖尿病、心脏病、中风、高血压和癌症。
It affects virtually all ages,genders,and socioeconomic groups in both developed and developing countries.
它无形中影响了所有年龄、性别和社会阶层的人群，无论是在发达国家还是发展中国家。
With a 60%rise in child obesity globally over just two decades,the problem is too significant to ignore.
在刚过去的二十年中，全球儿童的肥胖率提高了60%，肥胖问题已经足够严重且难以忽视。
Once a person is obese,the climb to recovery becomes progressively steeper.Hormonal and metabolic changes reduce the body's response to overeating.
一旦肥胖起来，想要恢复就会非常的艰难。荷尔蒙的和新陈代谢的变化减少了身体对过度饮食的反应。
After losing weight,a formerly overweight person burns less calories doing the same exercises as a person who is naturally the same weight,making it much more difficult to shed the excess fat.
在减去体重以后，一个原先肥胖的人，与原来就同样体重的人做同样的运动，会燃烧更少的脂肪，这也就使减去多余的脂肪变得更加困难。
And as people gain weight,damage to signaling pathways makes it increasingly difficult for the brain to measure food intake and fat storage.
当人们体重增加时，大脑信号通路受到的伤害让大脑对食物摄入的测量和脂肪存储的判断难度上升。
There is,however,some evidence that well-monitored,long-term changes in behavior can lead to improvements in obesity-related health issues.
但是，一些证据显示，行为上良好的控制和长期的改变能够帮助解决与肥胖相关的健康问题。
坚持减肥的生活方式
And weight loss from sustained lifestyle changes,or invasive treatments like bariatric surgery,can improve insulin resistance and decrease inflammation.
而且坚持减肥的生活方式，或者如减重手术之类的治疗，能够提高胰岛素的抵抗力，并减少炎症的发生。
What was once an advantage for survival is now working against us.
一个曾经的生存优势正在与我们对抗。
As the world's population continues to slow down and get bigger,moving and consciously eating our way towards a healthier weight is essential to our overall well-being.
随着世界人口的脚步持续放缓，人们的块头却越来越大，活动和合理的进食是通往健康体重的方式，对我们的整体至关重要。
And with the epidemic affecting every country in the world for different socioeconomic reasons,obesity cannot be seen as an isolated issue.
这种流行病正影响着全世界的每个国家。出于不同的社会经济原因，肥胖不应该被当成一个孤立的问题。
More global measures for prevention are essential to manage the weight of the world.
更多全球性的保护措施对于管理世界人民的体重十分关键。
