do (one) a/the world of good

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do (one) a/the world of good

To have a very positive effect on someone or something. If you're feeling sad, getting out in the sunlight should do you a world of good.
See also: good, of, world
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

do somebody/something a ˈpower/ˈworld of good

(old-fashioned) do somebody/something a lot of good; benefit somebody/something: She’s under a lot of stress at work, and a few days at the coast would do her a power of good.
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
But look here, I'll send you this evening for a three weeks' rest to a convalescent camp which will do you the world of good." I started to explain to him what the Brigade doctor had told me, but he would not listen.