为测试这项理论，心理学家把目光转向了肉毒杆菌，他们用这种毒素使控制皱眉的肌肉麻痹无力。

To test the theory, psychologists reached for the botox. They used the toxin to _deaden_ the muscles that control frowning.

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卡路里理论认为，脂肪是身体储存多余能量的方式；但另一种理论却认为，脂肪是身体储存多余毒素的方式。

The calorie theory suggests that fat is your body's way of storing excess energy, but another theory is that fat is your body's way of storing excess toxins.

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理论上，对群体感应系统进行干扰可以阻止生成作为细菌感染的直接病因的病原体及毒素。

Theoretically, blocking quorum sensing would prevent the bacteria from turning pathogenic and producing the toxins that are an immediate cause of disease in bacterial infections.

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