It's hard. When we smile our body is sending the rest of us a message that "Life is Good!" Stay away from depression, stress and worry by smiling.

这是困难的。当我们微笑的时候，我们的身体向我们传输的信息是“生活是美好的！”微笑让消极、压力和恐惧都离我们远去。

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Smiling against one's own will can lead to depression, affect the immune system, cause higher blood pressure and other problems, he said.

强颜欢笑可能导致忧郁，影响免疫系统，造成高血压等问题，他说。

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Smiling against one's own will can lead to depression, affect the immune system, cause higher blood pressure and other problems, he said.

强颜欢笑可能导致忧郁，影响免疫系统，造成高血压等问题，他说。

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