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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.
Blood is approximately twice as thick as water because of the cells and other components found in it.