Hysteria

I often think of the word "hysteria" when I view television ads or programs, or observe public advertising or life extremes (in town, in the Cities). Is it my reaction or are these some manifestation of hysteria? When I explained this to one of my sisters she was offended, as if I was describing a norm as something abnormal (?). For example, people running around in a car showroom, as if their lives depended on it, or the fast food ads which have people taking enormous bites out of junk food sandwiches. Or the hyperdrive activity of sitcoms, which are supposed to be funny, and which are backed up by canned laughter. I don't know, perhaps it is my age.