Smoking is injurious to your health. 为什么这句英语的用to,而不是for？

Question

Smoking is injurious to your health.

为什么这句英语的用to,而不是for？ 这个to是不定式吗？

Answer 1

Smoking is injurious to your health.
抽烟对你的健康有害。
injurious adj. 有害的，诽谤的
Those activities are injurious to the common
interest.
be injurious to ... sb / sth, 对某人或某事有害
固定词组用介词 to , 不用介词 for。

Answer 2

three major hazards of smoking:
1) can be directly toxic to life
2) can damage the body's nutrients.
3) can be induced by a variety of diseases.
“这个视频讲了什么？” What did this video talk about?
“你知道吸烟有哪些危害吗？” Do you know what are the hazards of smoking?

Answer 3

be injurious to sth. 是固定搭配