Human Senses 1. Smell and Taste (6 of 21)

Human Senses

In our case sweet, and salty foods.
But sour and bitter things might be poisonous.
So we need to tell these different tastes a part almost instantly, and we're equipped with tongues that can do just that.
l don't like it.
Our saliva dissolves morsels of food, releasing chemicals, which travel down to the taste buds, which are buried in the surface of the tongue.
When bitter or sweet chemicals land on the surface of taste sensing cells, a bitter or a sweet signal is sent to the brain.
Salty and sour chemicals are even smaller.
They pass right through the walls of the taste sensing cells.
Once inside they trigger a salty or a sour signal to the brain.
But the same food can taste very different to different people.

That's because some people are far more sensitive to tastes than others.
Which limits how far each of us can go with strong tasting foods.
There's a simple way to find out what your made of.
We all live in different taste worlds.
And we're going to find out a little bit about the taste world you live in.
By painting your tongue with this blue food colouring.
With this dye the structures that hold the taste buds will stand out as pale dots against the dark background.
The more dots the more sensitive to taste.
The most sensitive are called super tasters.
And they can have 1 00 times more taste buds than other people.
So is this man a super taster?
ok l can look at your tongue, you're a super taster Hooray.
And let me ask you some questions about what you like.