Rachel is a frail and fragile girl who is prone to injury and bruising William Sheldon would most likely have classified her body as a ectomorph.
William classified people according to their body into three types:
1. Endomorphs- rounded and soft, with comfortable and extroverted personality,
2. Mesomorphs-square and muscular, with dynamic and aggressive personality,
3. Ectomorphs-thin and fine-boned with introverted, and sensitive personality.
