The Renaissance brought a new focus on womanly curves, and women went to unnatural extremes to achieve the perfect hourglass figure. Corsets of the day were highly restrictive and tightened to the point of being dangerous. In fact, lingerie was often so tight that ribs were broken or pushed out of place! Many women actually passed out from the excessive constriction.
Cleavage was highly prized in the 18th century, and lingerie was designed to heighten the effect. Although corsets were still made of constrictive whalebone, there was a definite movement towards the decorative lingerie we know today. The push-up corsets were adorned with ribbon, lace, and intricate embroidery. By the end of the century, doctors were speaking out about the health hazards of corsets and the less-restrictive designs were introduced.