Nervous system.
Damage to the somatosensory pathway, specifically the dorsal column-medial lemniscal pathway, could result in diminished sense of touch. This pathway carries touch and proprioceptive information from the body to the brain for processing.
Hypoesthesia is the term of a diminished sense of touch.
Your sense of smell will be lost or diminished.
you cannot touch if you loes your sense of touching
There are reasons why you might lose your sense of smell even if you don't have a cold. Taste may not be diminished fully but there might be a decrease in smell with certain medical conditions.
Dorsal column system
Relative deprivation would be the cause of this type of diminished sense of self.
Damaged in what sense?
I am getting the sense that you would like an answer soon. Sometimes, I think that my sense of humor is the only sense that I have! My sense of smell brought me into your bakery, today. My sense of hearing has diminished, somewhat, with age.
This question is incomplete, and makes no sense.
balance
It will reduce your sense of smell.