What does this even mean? can you resay your question
False because mainstream smoke is defined as smoke from a cigarette or pipe. Second hand smoke is smoke that has been inhaled by someone then exhaled, making you the "second" one to breath it :)
The nervous system is what i'd say. Are there any options?
Answer:
Social skill deficits are related to many important personal and social outcomes in individuals with ID [5]. For example, many individuals with intellectual disability have less social skills than their same-age peers and are less able to use cognitive social behaviours
