Now as for myself, have been hiking and camping for years in Grizzly Country and am still in one piece. Am like Scatman in that I never change out of my clothes when cooking and eating. Also on my hikes when am usually just all by myself, I will get terribly grungy and wear the same clothes day in and day out. Then only occasionally washing them in some nearby creek. Also I generally do not take much cookable food at all but a lot of food which can eat as is like nuts, raisins, and so forth. I will take Macaroni and Cheese with me though And cook it over a fire. And in all my years, have never never never had a problem with a bear in my camp. In general have learned that it seems the Grizzlies want to avoid us as much as we want to avoid them. Give them their space and they will give you your space. Also very important .... Keep A Clean Camp and do believe this this helps prevent bear encounters also. Now to add also, I never wear sunscreen ever, but like I said earlier .... I can get quite grungy on my hikes when by myself.
Again have camped many a night in Grizzly Bear Country and never have had a problem with a bear in my camp. There were many a place where their was abundance of all sorts of bear sign nearby, but they generally it seemed always left my camp alone, even when I was away dayhiking during the day. Once in the Thorofare one morning in early June, after it had snowed a little the night before, saw some very fresh grizzly tracks near my camp. I followed the tracks for a little ways. The Bear had very intentionally and on purpose went around my camp and let me be. In this modern day age, much of the wildlife will have more common sense then many people it seems and respect it seems.
Wishing Everyone the Best!