Underweight? There's a quizlet on this and "causes of underweight" is the answer for a question very similar to this one. I hope I helped (:
<span>They are more likely to be "depressed, become alcoholic,
and/or have an eating disorder".</span>
Developmental stage theories are hypotheses that separate
youngster advancement into particular stages which are described by subjective
contrasts in conduct. There are various diverse perspectives about the manner
by which mental and physical advancement continue for the duration of the life.
The appropriate response is a behaviorist. Behaviorism is a way to deal with brain science in light of the recommendation that conduct can be inquired about experimentally without a plan of action to inward mental states. It is a type of realism, denying any autonomous noteworthiness for the psyche.