A new study conducted by scientists confirms that the so-called "fear of smell" is real. Researchers have discovered that through specific chemicals—called pheromones—secreted by the skin, people can "infect" others with their fears. This emotional signal can spread to multiple individuals in the vicinity, creating a shared sense of anxiety or tension.
The experiment, led by researchers from the University of Düsseldorf in Germany, involved 49 volunteers. During the test, Dr. Betkina and his team collected sweat samples from 21 participants one hour before the experiment began and again during a physical activity on a bicycle trainer. These samples were then given to the remaining 28 volunteers, who were asked to identify whether the sweat was collected before the test or during the exercise.
Although none of the volunteers could accurately distinguish between the two types of sweat, brain scans revealed increased activity in the emotional and social regions of the brain when they smelled the pre-test sweat. Scientists believe this response indicates that fear-related chemicals can indeed influence others, spreading emotions without words.
Many researchers agree that while smell plays a crucial role in human interactions, its full impact remains underexplored. Previous studies have shown that body temperature can affect attraction, as men with stronger immune systems tend to emit a scent that women find more appealing. Additionally, people often choose partners with different body temperatures, as it helps avoid inbreeding and promotes genetic diversity.
A similar study funded by the U.S. Department of Defense last year found that odors associated with fear or nervousness can activate specific areas in other people’s brains. In that case, the sweat used came from a skydiver. Analysts suggest that the military is interested in identifying key chemical compounds that could be used to instill fear in enemy forces.
This ongoing research highlights how our senses, particularly smell, play a deeper role in communication than we realize. As scientists continue to explore these connections, we may gain a better understanding of how emotions are transmitted and how our bodies respond to the world around us. Meditech Medical Network
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