What is Behaviorial disorder?

Definition:

1. [noun] the action or reaction of something (as a machine or substance) under specified circumstances; "the behavior of small particles can be studied in experiments"
   Synonyms: behavior
2. [noun] (behavioral attributes) the way a person behaves toward other people
   Synonyms: demeanor, demeanour, behavior, conduct, deportment
3. [noun] (psychology) the aggregate of the responses or reactions or movements made by an organism in any situatio
   Synonyms: behavior
4. [noun] manner of acting or conducting yourself
   Synonyms: behavior, conduct, doings                                                                                                   

Behavioral disorders common as per age

Early childhood : Eating problems, Temper Tantrums, Thumb Sucking , Tics, Bed wetting. Personality of child –shy, restless, over eating, withdrawn, persistent,outgoing ,timid

Middle childhood: early pattern of Assertation,  impulsiveness, aggression, passivity, anxiety, Antisocial behavior  may emerge in context of social behavior.

Late childhood: Nightmares, Phobias, Masturbation, bed wetting, Running away, Delinquency,Smoking , Alcohol drinking etc.