カラオケ屋混雑の機運|[mixi] 歌うことがストレス解消に効果的!コルチゾール低下(産経新聞) http://news.mixi.jp/view_news.pl?id=2160324&media_id=133&from=home&position=1 …
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カラオケ屋混雑の機運|[mixi] 歌うことがストレス解消に効果的!コルチゾール低下(産経新聞) http://news.mixi.jp/view_news.pl?id=2160324&media_id=133&from=home&position=1 …