Berk said that combined with prior research into how laughter improves mood , the results " would appear to carry important , positive implications for wellness , disease - prevention and most certainly stress - reduction . " the study was small , however , involving just 16 people 伯克在美国心理学协会的实验生物学年会上说，与之前的有关笑声能改善情绪的研究结合起来看，这一结果“对于维持健康和防止疾病及减压等，似乎都具有重要的正面的暗示” 。
Berk said that combined with prior research into how laughter improves mood , the results " would appear to carry important , positive implications for wellness , disease - prevention and most certainly stress - reduction . " levels of these known feel - good substances remained elevated during the video , which brought about what the researchers call " mirthful laughter , " and for 12 to 24 hours afterward 伯克在美国心理学协会的实验生物学年会上说，与之前的有关笑声能改善情绪的研究结合起来看，这一结果“对于维持健康和防止疾病及减压等，似乎都具有重要的、正面的暗示” 。
