Cold weather stresses the immune system, and so, while the term 'catching a cold' may be a misnomer... a weakened immune system can make you more susceptible to those viruses.

寒冷的天气会压迫免疫系统，所以‘患感冒’这个词可以说是用词不当……免疫系统被削弱了，这使你更容易受病毒的影响。

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Generally speaking, able-bodied, able to withstand cold, and the elderly, the infirm or over-exertion, the body weak, susceptible to cold invasion, must be careful.

一般来讲，身体强壮者，尚能抵御风寒，而年老体弱或劳累过度、身体较弱者，易被风寒入侵，必须谨慎。

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