It's a fact of digital life that every time you're hit with a twinge of pain or a pang of discomfort, the natural impulse is to immediately google your symptoms, which will lead you to reach the eventual (and sensible) conclusion that you probably have cancer.
在现在的数字社会，当你忽然感到一阵疼痛或者一阵不适时，本能的反应就是去google一下你的症状，然后得出最终结论：可能是癌症。
Relax! The good news is that you probably don't have cancer. Or AIDS, dengue fever, Lyme disease, Ebola, leprosy, or any of the other terrifying illnesses that keep WebMD in business. In fact, you may be even healthier than you think. Random pains can be distressing, but if your body displays these subtle signs of health, chances are good that you're actually doing just fine.
淡定！事实上你可能并没有癌症，艾滋，登革热，莱姆病，伊波拉病，麻风病，或者其它什么能让网络医生有利可图的可怕的病。你可能要比你想象中的还健康。偶尔的疼痛的确很让人痛苦，但是如果你的身体其实是在发出一些很微妙的健康信号，很可能你现在的生活方式就很好了。

1. Relatively Clear, Copious Urine 小便清长
If you're peeing a few times a day and it's pale yellow—not cloudy, dark, or super-concentrated—that means that you're adequately hydrated and your kidneys are healthy. Completely colorless urine, however, indicates that you may be over-hydrated, and while that's not as problematic as being dehydrated, it could mean that you're losing valuable salts and electrolytes.
如果你一天要小便多次并且呈淡黄色——不是大量，深色，过于浓缩的——这说明你的身体是富含水分，而且肾脏很健康。而完全无色的尿液则说明你身体的水分过多，如果没出现脱水的症状，则说明你正流失盐分及电解质等营养成分。
2. Regular, Well-Formed Bowel Movements 规律、适当的肠部运动
Yes, it all comes down to poop. Normal feces come in many different shapes, sizes, and colors, but as long as yours isn't bloody, loose, or painfully hard, you're probably okay. Being regular is another good indicator of relative health; when your body is processing solid waste quickly and efficiently, it shows that there's adequate fiber in your diet and your digestive system is working properly.
这实质上指的是大便。正常的大便可能有着不同的形状、大小、颜色。但是只要你的大便不带血色、稀薄或要非常痛苦的用力，一般都是没问题的。而大便规律是身体相对健康的好征兆。如果你的身体能够快速高效的处理固体垃圾，说明你摄入了足够的膳食纤维，而且消化系统运转正常。
3. Stable Weight 稳定的体重
Assuming you're not grossly underweight or morbidly obese, a relatively stable weight is a sign of good health. Significant unexplained gains and losses or yo-yoing back and forth on diets are causes for concern.
只要你不是过于轻或病态肥胖，那么相对稳定的体重是健康的一个标志。而如果体重突然不明的增加或减少或者食量忽大忽小，这就要引起主意了。