They used the toxin to deaden the muscles that control frowning .

他们用毒素使控制皱眉的肌肉失去活力。

By paralyzing the facial muscles used for frowning , botulinum toxin a - or botox - prevents people from physically displaying expressions of negative emotion .

通过麻痹用于皱眉的面部肌肉，a型肉毒毒素或肉毒杆菌毒素使人们无法表达人体自然流露的消极情绪。

To testthe theory , psychologists reached for the botox . They used the toxin todeaden the muscles that control frowning .

为了测试这个理论，心理学家们找到了肉素杆菌，他们就用这种霉素来缓和控制皱眉的肌肉。

They only have superficial interactions with each other-this is encouraged by frowning or looking angry all the time .

他们仅仅相互有表面上的接触这种方式总是受到皱眉或看起来很生气的鼓励。

Slouching , frowning , folding your hands , rocking back-and-forth in your chair or shaking your leg constantly , are some gestures that might give the impression that you are nervous , not confident or are too casual about your job .

没精打采、皱眉、把手叠在一起、在椅子上前后晃动以及不停地抖动腿，这些姿态可能给人留下你紧张、缺乏自信或对工作漫不经心的印象。