It says that these hairstyles are styles that are trends, which we all know don't hold up well to the test of time. I did the trend thing in the 80's and can barely stand to look at pictures, but late teens early 20's thats what you do. since then, I have a variation of the smae basic cut, which works well, I don't do gravity defying cuts and styles that require so much product that natural went out the window...