what this means is that there are several causes of obesity.

這意味著肥胖的形成有多種原因

Let's first talk about genetics, there is a genetic component to being obese.

我們首先要談論到的是遺傳因子，某部分的遺傳因子會造成肥胖

Unfortunately, there's nothing we can do about that though.

不幸地，我們對此毫無解決辦法

The good news is that there are other causes of obesity which we can control.

但好消息是，造成肥胖的其他成因是我們可以控制的

One of them might be other health conditions.

其中一項可能是健康狀況

For example, if you have an underactive thyroid that's not properly treated, you can gain weight

舉例來說，如果你的甲狀腺功能減退且未妥善治療，將導致體重增加、

and eventually become obese.

最終變得肥胖

Other medications may also lead to obesity.

其他藥物或許也會造成肥胖

These can be medications such as insulin, steroids, and even some antidepressants.

例如：胰島素、類固醇、甚至是抗抑鬱藥

Most of the time however, obesity is not caused by a medical illness that you have.

然而大多數時候，肥胖並不是你的疾病所造成的

Obesity occurs when you have excess fat storage.

肥胖是發生在你囤積過多脂肪時

When you eat food, it's digested and then the nutrients are absorbed into your bloodstream.

當你進食後，食物被消化而其中的營養素會被你身體的血液所吸收

You burn calories throughout the day,

你一整天燃燒著卡路里，

the excess calories that you don't burn eventually become stored as fat.

而沒有燃燒到的多餘卡路里，最終以脂肪的形式儲存

So if you're eating more than you're burning off, you're going to become obese.

所以如果你攝取的卡路里多於你所消耗掉的，你很可能變得肥胖

A sedentary lifestyle can also lead to obesity.

久坐不動的生活方式也會導致肥胖

If you have a job where you're sitting at a desk for most of the day

如果你的工作在大部份的時間裡都是坐在辦公桌前

and you don't really get up and walk around, that can also cause obesity

而且你不會起身四處走動，這也會引起肥胖，

because you're not burning those calories that you're eating throughout the day.

因為你沒有消耗那些一整天吃飯後所產生的卡路里

So you want to make sure that you eat and you make good choices with your foods and

所以你要確保自己攝取對的食物，

also that you try to maintain some level of activity in your life.

並試著在日常生活中維持某種程度的活動量

So those are some of the causes that can contribute to obesity.

因此上述這些便是形成肥胖的部分原因