<unk>  is a reduced ability to smell and to detect odors. A related condition is anosmia, in which no odors can be detected.  Some of the causes of olfaction problems are allergies, nasal polyps, viral infections and head trauma. It is estimated that up to 4 million people in the United States have<unk>  or the related anosmia. Based on latest scientific evidence,<unk>  might also be a very early sign of Parkinson's Disease.
Hyposmia
Hyponatremia
Hyperaemia
Hypernatremia
Hypermethioninemia
Hypoglycemia
Pseudohyponatremia
Alkalosis