The processing of fear
The systole doesn't inhibit the stimuli of fear. The systole not only activates inhibitory brain regions, but also the amygdala, an area that process the experience of fear. During systole, people can perceive fearful faces more intensely.
If you are in a state of fear, you don't want to be sensitive to pain. You want to run over broken glass to escape the threat. But you also want to be hyper-alert to danger in the environment.
I love playing tennis, running and watching cat videos. Coffee is my friend.
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