Men prefer young women in part because they tend to be healthier than older women. One accurate indicator of health is physical attractiveness; another is hair.
2
那个帅哥怎么会喜欢上那个老女人?他肯定脑子出问题了。
How can that handsome guy fall in love with that old woman? He must have gone doolally.
3
老女人喜欢年轻男人,这在美国文化是会引起别人皱眉的。
Older women who like younger men are frowned upon in American culture.