I can't comfortably drink enough water during a day to meet the recommendation. Apparently I'm in a 24/7 state of dehydration. Okay, it's not that I couldn't do it physically comfortably, but I never do it unless I make a concentrated effort...like, "Oh, it's 3PM, I'd better go drink 2 glasses of water for no apparent reason." I never really observe it, but it's annoying that it's a recommendation and I feel like I should try to.