Answer:
He may have developed behavioral tolerance, which could cause him to require more of the drug to feel the same effect if he uses in a different environment than his bedroom.
Step-by-step explanation:
You may already know the meaning of "chemical tolerance", this term refers to all the need for an increasing amount of narcotics to achieve the effect of previous use, as is happening with Omar in your room every day. Based on the meaning of the term "chemical tolerance", we can conceptualize the term "behavioral tolerance" which refers to a situation where a person with chemical tolerance needs larger amounts of narcotic because his environment is different. Omar uses heroin often in his room, when he went to a party, he changed his mood, so on receiving some heroin, he may have developed behavioral tolerance, which could make him demand more of the drug to feel the same effect when using in a different room environment