2565
CONCLUSIONS : Given this record of impaired memory and clinically significant levels of depression , impulsiveness , and sleep disturbance , the prognosis for the current generation of ecstasy users is a major cause for concern .
 Disease: impaired memory; Disease: depression; Disease: impulsiveness; Disease: sleep disturbance; Chemical: ecstasy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: impaired memory; Disease: depression; Disease: impulsiveness; Disease: sleep disturbance; Chemical: ecstasy