HUMAN NUTRITION

Detailed explanation-1: -Some things can cause a long-lasting loss of smell. A head injury, for example, can damage the nerves related to smell. Sometimes, losing your sense of smell may be a sign of a more serious disorder, such as Parkinson’s disease, mild cognitive impairment, or Alzheimer’s disease.

Detailed explanation-2: -Older people slowly lose their sense of taste and smell, affecting how much they eat and the kinds of food they choose. Changes in smell and taste can affect food preferences. Food can become tasteless and unappetizing as a result of declining taste and smell perception.