Loss of sense of smell

About 1% of the American population either smell nothing at all or cannot detect some of the 100,000 distinguishable odours.

1. Human disability

1. Traumatic anosmia

1. Progressive supranuclear palsy
2. Coronaviruses
3. Parkinson's disease

1. Malodorous fumes

1. Diseases of the nose

1. Smelling bad

1. Nonsense
2. Lack
3. Common sense