Hmmm, I haven't become numb in general, but I have certainly become numb in the short term. When I first started traveling on an expense account on weekly trips, I would just not be hungry on Fridays, how can you possible eat anymore after ordering every course at dinner every night?!? I also get sick of eating 'out' everyday for extended periods of time, however, now that my travel and business eating has slowed a little bit, and I am lucky enough to have been traveling to places that have a great variety of food I haven't had any issues recently.