1132
This review will provide an overview of the non - drug based approaches that have been demonstrated to enhance cognitive function of the compromised brain , primarily focussed on the two most widely adopted paradigms of environmental enrichment and enhanced physical exercise .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None