You’ve probably heard of waist training; its popularity has been growing in recent years. In the past, “waist training” meant using steel boned corsets in order to achieve an hourglass shape (which was pretty exaggerated). By securing the corset tighter and tighter, it was able to pull in women’s ribs and thus achieve a more “flattering” figure. Moreover, the corset had the power to rearrange some internal organs and effectively reduce the girth of a woman’s waist.
The effect was semi-permanent; that meant that women had to continually wear the corset, even after they have reached their goal.