Body piercing is frequently done in the form of a ladder. Modern body piercing practices also include dermal anchoring or dermal piercing, which combines piercing and implantation to create a single point of opening in the body (whereas pocketing creates two) to permit one end of the jewellery to show above the surface of the skin. While this technique can be performed almost anywhere on the body, as of 2007 it was popularly done between the eyes, on the chest, or on the finger, to simulate a ring. The practice of body piercing is subject to trends and fashions. Belly button and
Female body shape have been exactly identical to the Vitruvian Man because the human body is always changing to adapt its environment. "In the more than five centuries since, human height has changed." In fact, when Da Vinci was drawing this figure in the 15th century, the average height of men of European ancestry was 5'6"–5'8"; however the average male height today is 5'9"–5'11". Kilgore ends his experiment stating that the Vitruvian Man does not accurately describe the modern male or female. In another social experiment, researchers Kara Crossley, Piers L. Cornelissen, and Martin Tovée explore what an attractive body is, asking multiple