According to one theory there are three basic body types and to some extent personality can be determined by your body type:
The Endomorph is a body type that naturally tends to be overweight. These body types are assumed to have a greater love of comfort and luxury and they are more tolerant than the other two body types.
The Mesomorph is the muscular body type. These people are naturally endowed with more muscle and their respective personality is thought to be more dynamic, energetic, competitive and inclined to take risks.
The Ectomorph is the naturally slender person. They are thought to be more artistic, introverted and sensitive than the other two types.
When I took a university kinesiology course many years ago, at one point the professor had us all stand on a stool against a backdrop of engineer type squared paper to measure what body type category we fell into. I thought it was a bit creepy at the time and from what I gather it's unlikely people study William Sheldon's theory of 'somatotypes' in kinesiology courses these days. But it is a fact that different people are born with different predispositions toward one of these physical body types. Whether personality can be correlated with body type is another matter altogether.
A weight loss strategy may possibly be more effective if it takes into account your natural body type. I'll look into this in a future post.
The above fine art print is 'Fat Cat' by Kevin Snyder