<<What’s the different point in this sentence?>>

Researcher examines what tech does to us as well as what it does for us. I want to know the individual meaning of ‘to’ and ‘for’ in the sentence. Is there something different thing?

Hi Richard, I understand that this is just a simple statement but it is confusing I hope it helps. Connie   Researcher examines what tech does to us as well as what it does for us. >> Researcher examines what technology does to us as well as what it does for us. >> I can tell you the difference by questions:  First: 1. What does technology does to us?- it is the effect of technology may it be negative or positive. Second: 1. What does technology does for us?