There are many risk factors for ADHD and no single cause.

ADHD有很多风险因素，但没有直接原因。

It measured lifestyle risk factors as rural areas became more urbanized.

它是衡量偏远地区城市化进程中生活方式的危险因素。

How food fits into all of this isn't simple, since dietary fat and sugar both affect some risk factors.

进食多少不是件简单的事，脂肪和糖都对身体都有影响。

Not everyone who gets the virus develops cancer, but it is a risk factor.

并不是所有感染这种病毒的人都会患上癌症，但这是一个危险因素。

Treatment of chronic pancreatitis involves controlling pain and trying to control the risk factors —things like drinking less alcohol, eating less meat, and reducing obesity.

慢性胰腺炎的治疗包括止痛和尽量避免危险因素：少喝酒、少吃肉、减肥！

Risk factors include urinary tract infections, as well as vesicoureteral reflux and obstructive uropathies, both of which are also risk factors for urinary tract infections.

危险因素包括尿路感染，还有膀胱输尿管反流和尿路梗阻，这两者也是尿路感染的危险因素。

Ultimately, though, understanding the risk factors for all of these conditions is important, because they allow patients to make informed decisions during or after having a child.

不过，最终了解到所有这些病症的危险因素很重要，因为它们允许患者在生育期间或生育之后做出明智的决定。

Exercise and generally higher levels of fitness are strongly associated with reducing health risk factors for things like hypertension, type 2 diabetes, depression, and even certain cancers.

锻炼和通常更高水平的健身与降低高血压、2 型糖尿病、抑郁症甚至某些癌症的风险因素密切相关。

Finally, Marfan syndrome is a risk factor for mitral valve prolapse, where the mitral valve pouches into the left atrium during systole.

最后，马方综合征也是二尖瓣脱垂的一个危险因素，即二尖瓣在收缩期时突向左心房。

Research is discovering new risk factors of breast cancer such as breast density, age of first pregnancy, and genetic predisposition to breast cancer genes such as BRCA1 and BRCA2.

研究发现乳腺癌的新危险因素，如乳腺密度，首次怀孕年龄，以及乳腺癌基因（如乳腺癌基因一号和乳腺癌基因二号）的遗传易感性。

The researchers say that television viewing may be a risk factor for all Alzheimer's disease, but more researches needed to establish a link.

研究人员表示，电视可能是所有阿尔茨海默症的危险因素，但是仍需要更多的研究来建立联系。

And so for decades, we've been focusing on the traditional cardiac risk factors.

因此， 几十年来，我们一直专注于传统的心脏危险因素。

While it's described as a modest association, it is at least a risk factor that can be acted on through diet or medication.

虽然该研究称两者之间的关联不太大，但它至少是一种可以通过饮食或药物来规避的风险因素。

Polluted air is another risk factor.

空气污染是另一个风险因素。

The American Diabetes Association says that because being overweight is a risk factor for diabetes, calories, but not sugar, are what lead to diabetes.

美国糖尿病协会认为，因为超重是糖尿病的危险因素，所以导致糖尿病的是卡路里，而不是糖。

We know that high cholesterol in the blood, specifically LDL, is a risk factor for heart disease, but so is high blood pressure and obesity.

血液中的胆固醇过高，尤其是LDL ，是心脏疾病的危险因素，但是高血压、肥胖也是。

In the eyes, Marfan syndrome is a risk factor for retinal detachment and a dislocation of the lens, which is usually in an upward direction.

在眼部症状上，马方综合征是视网膜剥离、晶状体脱位的危险因素，通常是向上脱位。

These are common risk factors for vitamin D deficiency, being elderly, not eating much fish or milk.

这些都是维生素D缺乏的常见风险因素，如年龄大，不吃鱼或牛奶。

Diabetes, however, is a risk factor for both failing eyesight and dementia.

然而，糖尿病是视力下降和痴呆的危险因素。

We see this when we look at twin studies as well, where having a twin with type 2 diabetes increases the risk of developing type 2 diabetes, completely independent of other environmental risk factors.

我们由双胞胎研究可以得知，如果双胞胎之一患有2型糖尿病，在没有外界因素干扰的情况下，另一位的患病几率也会增加。