A loss of smell is also referred to as Anosmia which comes from the Greek words "An" meaning (no) and "-osmia" meaning (smell). Loss of smell is a disorder that can have a major impact on the quality of life. It can lead to a decrease in ones appetite and poor nutrition especially in older people. A loss of smell often leads to a loss of taste because taste is closely related to smell (try eating while holding your nose to prove this). This disorder can be frustrating because it can affect ones ability to enjoy foods and appreciate pleasant scents. It can also hinder ones ability to notice possible harmful chemicals and gases which may lead to serious consequences. In TCM, A loss of smell is caused by the deficiency of lung Qi and kidney.