B2 有利（某人）的健康；对（某人）有好处；对（某人）有益处
to improve someone's health or life
You can't work all the time - it does you good to go out and enjoy yourself sometimes. 你不能老是工作——有时也得出去享乐一下，这对你有好处。
Take the medicine - it will do you (a power/world of) good (= improve your health a lot). 把药吃了——这对你身体（大）有好处。
It'll do you good to get some fresh air.
It would do him some good to socialize a bit more.
Take a break and go out for a walk - it'll do you good.
I think it would do her good to get away for a few days.
See also: good noun (HEALTH)