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What fear does to our body...

Updated on March 24, 2012

When an organism is scared, not just humans but animals as well, a part of the nervous system called the Sympathetic Nervous System activates. This will allow constriction of blood vessels making the heart beat faster to maximize pressure around the system. Pupils dilate making our senses sharp. The lungs and throat opens up and breathing is increased to get more oxygen in the air to compensate the increased blood flow. Deeper breaths also help us to scream loudly. The sweat glands in the body opens up providing cool liquid to our system. This allows the skin to be cold and clammy. Natural Pain killers (Endorphins) in the body are released, allowing and acute increase of the person's pain tolerance. Our Hairs stand up, in other words, piloerection, or in layman's term, goosebumps. the Digestive system together with the salivary glands suppresses allowing us to experience dry mouth, urinary retention, and even constipation. Judgment and Thinking are suppressed at this time and primitive responses takes over such as punching, kicking, and running as well. These are some of the body's reaction to being scared. Certain complications may develop when prolonged scare is being experience. One common complication would be trauma. It's fun to mess around with people, just don't over do it.


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