About my observations said researchers from the University of California. The scientists worked with 10 women between the ages of 33 and 40 – before doing Botox and after a rejuvenation procedure. They showed them photos of people laughing and frowning and recorded brain reactions using an MRI. In the process, it turned out that after Botox injections, the activity of one of the brain regions changes. It is responsible for the formation and recognition of emotions. After Botox, the women tested were unable to clearly determine whether the people in the photos were happy or angry.
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