An average human male has a size of 6. Human females have an average size of 5. Size is basically a measure of how much the character weighs. It is a contributor to the major attribute of Strength. Fitness Fitness ranges from 1 to 10, with 5 an average value.
Fitness is a measure of how strong the character is, based on size.
An extremely obese person might have a large Size, but a low Fitness. Fitness contributes to Strength. Certain physical skills can only be acquired by a very fit person. Reasoning Reasoning is the ability to figure out problems, to make logical deductions. It determines the ease with which the character will be able to acquire skills involving the reasoning process.