Author Topic: Humans’ built-in GPS is our 3-D sense of smell  (Read 2236 times)

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Offline goodsamaritan

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Humans’ built-in GPS is our 3-D sense of smell
« on: June 21, 2015, 09:56:12 pm »
This study supports the theory of Instincto

Smell is a primitive sense that our early ancestors used for foraging, hunting and mating, among other skills necessary for survival. Early sailors and aviators gave anecdotal reports of using odors to navigate, but there have been no experiential scientific studies on this until now.

The process of smelling, or olfaction, is triggered by odor molecules traveling up the nasal passage, where they are identified by receptors that send signals to the olfactory bulb –  which sits between the nasal cavity and the brain’s frontal lobe – and processes the information. A key to the connection between smell, memory and navigation is that olfactory bulbs have a strong neural link to the brain’s hippocampus, which creates spatial maps of our environment.

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Offline dair

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Re: Humans’ built-in GPS is our 3-D sense of smell
« Reply #1 on: December 20, 2017, 10:55:24 pm »
The sense of smell is really interesting: mine got better when I started eat more raw, and no/little salt. Also vegans/vegetarians with too little zinc are said to have a worse sense of smell than meat eaters.
I think the sense of smell is one of the senses that has suffered the most by "civilisation" and modern living.
A strange thing I have noticed: sometimes my sense of smell increases when it's the time of my ovulation, maybe some sort of way to sniff out the right partner or something. It's also possible to detect diseases via the nose: there are dogs for instance that can smell if a person has cancer... We could really develop this sense in some way.


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