The smell of fear
Telegraph:
...That sounds like something the military should research. I suspect the same chemicals are released when an army is being routed. You would want a deodorant to mask it for your guys and way to spread it for the enemy.
They believe the signals can be catching and spread around a group.
...None were able to tell the difference between 'panic sweat' and 'exercise sweat' but the brain scans told a different story, reports the science journal PLoS One.
When sniffing 'panic sweat', the regions of the brain that handle emotional and social signals became far more active. Parts of the brain involved in empathy also lit up.
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