30237
Indeed , the DSM - IV recognizes that social , occupational and / or recreational activities become reduced as a consequence of repeated drug use where previously rewarding experiences ( e . g . , food , job , family ) become devalued as the addict continues to seek and use drug despite serious negative consequences .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None