Depends on if you have your bar height correct for the position you want to be in. Or whether or not you are new to cycling and just need to gain some fitness Or you have bars that give more drop from the hoods than you need. Which is common with old style drop bar made before and even soon after the advent of STI's.

There could be all sorts of reasons. One solution might be the answer, but we'd have to know your unique circumstances to even get in the ballpark.