Sheldon's correlations remain unproven and, in 1995, it was revealed that many of the photographs Sheldon studied were obtained by requiring students at universities to be photographed naked and without informed consent as to how the pictures might be used. Sheldon died of heart disease in Cambridge, Massachusetts, in 1977.

He says that a fat person with a large bone structure tends to have an outgoing and more relaxed personality while a more muscular body-typed person is more active and aggressive.

A slim or scrawny person with thin muscles is usually characterized as quiet or fragile.

Endomorphic - Psychologically, they are also fun-loving, good humored, even-tempered, and they love food and affection.
The Endomorph is physically quite 'round', and is typified as the 'barrel of fun' person. They tend to have: * Wide hips and narrow shoulders, which makes them rather pear-shaped. * Quite a lot of fat spread across the body, including upper arms and thighs. * They have quite slim ankles and wrists, which only serves to accentuate the fatter other parts.

* Sociable * Fun-loving * Love of food * Tolerant * Even-tempered * Good humored * Relaxed * With a love of comfort * And has a need for affection

Ectomorphic - They may eat just as much as the endomorph but never seem to gain any weight. They always stay skinny.
They always keep to themselves and are a afraid to branch out.
The Ectomorph is a form of opposite of the Endomorph. Physically, they tend to have: * Narrow shoulders and hips * A thin and narrow face, with a high forehead * A thin and narrow chest and abdomen * Thin legs and arms * Very little body fat
Even though they may eat as much as the endomorph, they never seem to put on weight (much to the endomorph's chagrin). Psychologically they are: * Self-conscious * Private * Introverted * Inhibited * Socially anxious * Artistic * Intense * Emotionally restrained * Thoughtful

Mesomorphic - Physically, they tend to have a large head and broad shoulders with a narrow waist. They have a strong muscular body and strong arms and legs and little fat on the body.
They work for the body they have so that they could have an attractive body. Psychologically, the mesomorph is adventurous and courageous. They are not afraid to break out and do new things with new people. They are assertive
The mesomorph is somewhere between the round endomorph and the thin ectomorph. Physically, they have the more 'desirable' body, and have: * Large head, broad shoulders and narrow waist (wedge-shaped). * Muscular body, with strong forearms and and thighs * Very little body fat
They are generally considered as 'well-proportioned'. Psychologically, they are: * Adventurous * Courageous * Indifferent to what others think or want * Assertive/bold * Zest for physical activity * Competitive * With a desire for power/dominance * And a love of risk/chance

Sheldon's Motives

The original work of Sheldon was used to characterize criminals and he found that most of the criminals were mesomorphs because violent crimes were usually committed by big strong men. It makes sense because according to Sheldon's theory, people with a muscular and attractive body tend to be competative and want power and dominance. This also proved that mesomorphic people are usually criminal in nature.