True Story: Most of us have been taught that we have 5 senses in schools. But that isn't true, there are at least 9 senses and some even argue there are 21 senses.
The five senses was listed first by Aristotle, the Greek philosopher. In addition to his list: hearing, smell, taste, sight and touch, the common agreed 4 senses are:
6. Thermoception - sense of heat on our skin
7. Equilibrioception - sense of balance
8. Nociception - sense of pain
9. Proprioception - sense of where our parts of bodies are, without being able to see or touch them
There are also hunger, thirst, which can be included in the list.
MYTH 2: There are four (or five) basic taste senses in our tongue, and certain parts of our tongue is responsible for different tastes (as shown below).
True Story: This 'tongue map' is completely rubbish, but has been taught in schools around the world. Every parts of our tongue can taste the basic tastes.
What's more, there are more than 4 or 5 tastes that our tongue can distinguish.
The basic tastes are: bitter, sour, sweet, salty and umami (also known as savouriness or MSG).
In addition to these tastes, our tongue can sense the following:
- fattiness
- hotness (spicy)
- temperature
- coolness - or freshness, minty feeling
- dryness - unripe fruits
- metallicness
fake
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