Frequent hand washing is the single best thing people can doto avoid getting sick, from colds and the flu to germs lurking infood, doctors say.
医生建议，勤洗手是预防生病的最好办法，比如，可以防止伤风感冒以及远离食物内潜伏的细菌等。
More Frequent Colds or Flu: There's an inverse relationship between stress and immunity, so if you're under too much stress, you may be getting sick more often.
伤风感冒或流感更加频繁：压力和免疫力成反比，所以如果你承受的压力过大的话，你就会经常生病。
Frequent hand washing is the single best thing people can do to avoid getting sick, from colds and the flu to germs lurking in food.
经常洗手是人们避免由感冒，流感和食物中潜伏病毒带来的疾病简单而有效的一个办法。
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