When can a youthful appearance work against you? Other threads have mentioned weight and hair coloring...but what about the reverse.
When I interviewed once for an executive position in a large IT operation the room was filled with hoary headed men and women...who looked at me and my resume and seemed shocked. (Full head of hair and virtually no gray)
The very tenor of the interview left me feeling they could not believe the person with the years of experience was the same person sitting in the room.