Smelling around

Smell was the first sense.
We think because we smelled.
Smell, generated in the primitive brain, is the one sense indelibly printed in the memory.
As agent of recall the nose is the one.
For myself distant memories are recalled by a smell.
The fragrance of lime in the night reminds me of my grand parents.
We used to sit under a huge lime tree in the Summer nights.
The fragrance of freshly mown grass conjures up the chore of mowing it.
Those who are deprived of two senses are called deaf or blind, but what is the word for those who can't smell?
For somebody should be: demented.
Because they say the loss of smelling is a sign of brain deterioration.