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TOP 10 Weird Facts About Human Senses


The primary means by which we interact with the world around us is through our senses. Here are some interesting facts about these five sensory abilities.









SENSES

10. The skin is the largest organ in the body, weighing in at about 6 - 10 lb. Your skin detects touch via receptors for pain, pressure and movement, cold and heat.


9. We go about our activities, breathing in and out, as an infinite number of chemical molecules interact subliminally with our odor receptors. Only when an odor irritates or pleases us or acts as a sudden reminder of the past do we pause to take notice. 


8. Even small noises cause the pupils of the eyes to dilate. It is believed that this is why surgeons, watchmakers and others who perform delicate manual operations are so bothered by uninvited noise. The sound causes their pupils to change focus and blur their vision, making it harder to do their job well.


7. Your nose can remember 50,000 different scents. While a bloodhound’s nose may be a million times more sensitive than a human’s, that doesn't mean that the human sense of smell is useless. Humans can identify a wide variety of scents and many are strongly tied to memories.


6. About one third of the human race has 20-20 vision. Glasses and contact wearers are hardly alone in a world where two thirds of the population have less than perfect vision. The amount of people with perfect vision decreases further as they age.


5. If saliva cannot dissolve something, you cannot taste it. In order for foods, or anything else, to have a taste, chemicals from the substance must be dissolved by saliva. If you don’t believe it, try drying off your tongue before tasting something.


4. After eating too much, your hearing is less sharp. If you’re heading to a concert or a musical after a big meal you may be doing yourself a disservice. Try eating a smaller meal if you need to keep your hearing pitch perfect.


3. There are about 10 million smell receptors up in the space behind your nose for detecting smells. Working together with you brain, this group of nerve cells is able to detect about 10,000 different odors.


2. Women are born better smellers than men and remain better smellers over life. Studies have shown that women are more able to correctly pinpoint just what a smell is. Women were better able to identify citrus, vanilla, cinnamon and coffee smells. While women are overall better smellers, there is an unfortunate 2% of the population with no sense of smell at all.


1. Everyone has a unique smell, except for identical twins. Newborns are able to recognize the smell of their mothers and many of us can pinpoint the smell of our significant others and those we are close to. Part of that smell is determined by genetics, but it’s also largely do to environment, diet and personal hygiene products that create a unique chemistry for each person.


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