视频文本
Childhood obesity is a huge concern in the public
儿童期肥胖是公共健康领域一个重大的
health sector. Childhood obesity cannot be linked to
热点问题，不能只把儿童期肥胖与一个主要
one main factor, but has been linked to several possible
因素相关联，而要与儿童生活中一系列可能的
factors in a child's life. These factors include
因素相关联，这些因素包括
behavioral factors, environmental factors and genetic
行为因素，环境因素以及遗传
factors. Behavioral factors would include a child
因素，行为因素包括，一个孩子
having excess energy intake or eating more calories
摄入过多能量，或者获取的卡路里
than burning and sedentary behavior or a lack of
比燃烧掉的多，以及久坐行为，或者缺乏
physical activity. Excess energy intake can come
体育锻炼，过多能量摄取可以来自于
from large portion sizes, meals away from home,
食物分量太大，在外用餐
added sugar and snacking on energy dense foods.
添加糖以及能量密集型的小吃食品
As technology moves forward our daily routines
随着技术的进步，我们开始习惯于每天
are beginning to become more sedentary.
更多地静坐在那里
Sedentary activity is beginning to replace physical
久坐这件事情开始取代体育锻炼
activity which also lowers metabolic rates in children.
它同样会使儿童的代谢速率变得更低
It's important to keep children physically active to
让孩子们保持体育运动十分重要
burn off those calories being consumed and encourage
这会帮助他们燃烧掉他们获取的卡路里，告诉
children to be active in their lives. Environmental
他们生命在于运动也很重要，环境
factors can be a large contributor to our eating
对我们的饮食方式而言也是一个
patterns as well. Similar to parent influences,
重要因素，与父母的影响类似
the home environment holds a big impact to
家庭环境对儿童期肥胖构成了
childhood obesity. Parents are the best role models
重大影响，父母在孩子用健康方式生活
for their children living the healthy life and children
方面是最好的行为榜样，孩子们
are going to best develop their habits learning from
将会学习他们的父母来养成他们的最佳
their parents. Also, awareness of childhood obesity
习惯，同样，对儿童期肥胖的关注
has encouraged changes in other environmental
也已促进了其他环境和周围事物发生
surroundings such as childcare, schools, and
改变，如儿童保育设施，学校和
community recreation options. Childcare and schools
社区娱乐条件，儿童保育设施和学校
are offering better meal options for children and making
都在为孩子们提供更好的饮食并且
a better effort to increase the amount of daily physical
致力于增加他们的日常身体锻炼
activity. Communities are promoting recreation
社区正在通过改善自行车道，人行道和公园
activities by improving access to bike paths, sidewalks
等设施来促进一些娱乐活动的
and parks. In recent years it has been thought that
开展，近些年来，遗传因素被认为是
genetic factors contribute to an individual's ability
一个人减少或者增加体重的能力的因素
to lose or gain weight. But this has found to play a
然而，在对近一段时间儿童期肥胖数量
minor role in the recent increase in childhood obesity.
进行观察后发现，这个因素其实并不重要
The lifelong impacts in health complications of
儿童期肥胖的并发症成为一个主要的
childhood obesity are a primary concern.
对健康的关注，因为它会造成终身影响
Health complications which are typically associated
通常只在成人身上出现的并发症
with adults are beginning to show up in children.
也逐渐开始在儿童身上显现
Complications include type 2 diabetes, high cholesterol
这些并发症包括2型糖尿病，高胆固醇
and high blood pressure. Other diseases are at
以及高血压，在肥胖儿童身上，其他疾病
higher risk in obese children such as asthma and
也处在爆发的高危之势，如哮喘和
sleeping disorders. If no health consequences arise
睡眠障碍，如果在儿童期健康状况
during childhood, childhood obesity has been found
不能加以改善，那么儿童期肥胖就会
to accelerate the development of cardiovascular
加速心血管疾病的发展
diseases such as heart attacks and high blood pressure
比如，心脏病和高血压
and metabolic diseases such as diabetes earlier in
与新陈代谢疾病，比如成人期早期的
adulthood. Research is beginning to question if
糖尿病，研究已经开始质疑
children's dietary habits can help reduce the risk
儿童的膳食习惯是否能够有助于降低成年后
of cancer later in life. Currently there is not a lot
患癌症的风险，目前，并没有太多研究
of research available to the duration of time required
可以持续所需要的那么长时间来
for such a study. A study done from 1937 to 1939
进行观察 1937到1939年对家庭饮食
on family diet and health did a 60 year follow up of
所进行的一项研究对相同受试者进行了60年
the same participants. Researchers looked at the food
的跟踪调查，研究者对受试者儿童期
and vegetable consumption of the participants as
所食用的食物和蔬菜进行了解，对比
children with the same number of participants who
相同数量的这些受试者中60年后
had acquired cancer 60 years later. This study found
得了癌症的那些人，这项研究发现
a low cancer association in adults with high fruit
在儿童期食用水果较多的那部分人
consumption during childhood. The reasoning is
患癌症的比例较低，原因
that to be attributed to the antioxidants in fruits
可解释为水果中的抗氧化物
which are thought to prevent cancerous cells.
被认为是可以阻止癌细胞生长的

视频及简介

视频简介：

本课程的目标是，向公众提供最新的有关营养方面的信息和话题，内容涵盖饮食因素对于癌症的影响作用，健康的饮食习惯，学校能提供的营养有哪些，咖啡因与癌症的联系，水果蔬菜与癌症预防等。通过本课程的学习，人们可以学习到健康的生活饮食习惯，在每天的饮食中防癌症于未然

重点讲解

重点讲解：
1.link to
同…有联系；与…有牵连
例句：Much of that body of knowledge has no link to the financial crisis and remains as useful as ever.
经济学的大多数主体知识和金融危机没有关联，并依旧有用处。
2.lack of
参考；缺少；不足；不够
例句：Arnold's pale complexion and lack of energy gave the doctor an indication that he might have anemia.
阿诺德苍白的脸色和欠缺活力，让医生觉得他可能有贫血。
3.move forward
向前发展；向前移动；向前进
例句：I do not care, with her mother to continue to move forward.
我也没有在意，跟着妈妈继续往前走。
4.burn off
烧掉；燃尽；烧去
例句：We are going to burn off the waste paper.
我们准备把废纸烧掉
5.contribute to
有助于；促成；贡献
例句：He did not expect to contribute to society, for society, not a bad thing.
他没有想到贡献社会，对社会来说，并不是坏事。