From Longman Dictionary of Contemporary Englishbe hard on somethingbe hard on somethingto have a bad effect on something Standing all day is very hard on the feet. → hard
Examples from the Corpus
be hard on something• He was hard on David but David certainly was talented.• Carolyn Staley knew that day last week had to be hard on her old friend, Bill Clinton.• This life was harder on her than on anyone else.• As usual, this hypocrisy was hardest on the poor.• Normally disasters are hardest on the poor.• Most successful entrepreneurs are hard on themselves, in the sense that they are never easily satisfied.• It really is something, though he is hard on you and he is difficult.• You always let people know it was hard on you that Dad taught school.• Aspirin can be hard on your stomach. 