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In a related German study, researchers used fMRI imaging to measure brain activity before and after injecting Botox to suppress smiling muscles.
德國一項相關研究中，研究者們通過功能核磁共振成像測量在微笑肌肉中注射了肉毒桿菌前后的大腦活動。
The finding supported Darwin's theory, by showing that facial feedback modifies the neural processing of emotional content in the brain,
這個發(fā)現應證了達爾文的理論，表明面部反饋控制了神經對大腦中情緒信息的處理，
in a way that helps us feel better when we smile.
這就讓我們在微笑時心情變得更好。
Smiling stimulates our brain reward mechanism in a way that even chocolate -- a well-regarded pleasure inducer -- cannot match.
微笑啟動了我們大腦的獎勵機制，就像巧克力－－這種公認的開心秘方－－是不可比擬的。
British researchers found that one smile can generate the same level of brain stimulation as up to 2,000 bars of chocolate.
英國的研究人員發(fā)現一個微笑能夠帶來相當于2000塊巧克力產生的腦部刺激。
