Friendship, Day, Good. Feelings aroused by the touch of someone's hand, the sound of music, the smell of a flower, a beautiful sunset, a work of art, love, laughter, hope and faith - all work on both the unconscious and the conscious aspects of the self, and they have physiological consequences as well. This world is but a canvas to our imagination.
The essential vitamin B-3. 1  Vitamin B-3, also known as niacin, is an essential nutrient for the body.  Niacin is found naturally in many foods, including fruits, vegetables, meat, and beer.
Niacin has a half-life of 20-40 minutes in the human body. The most reliable and sensitive method of measuring niacin status is through urinary excretion. For adults, 24-hour excretion rates less than 5.8 Âµmol/day indicate niacin deficiency while 5.8 to 17.5 Âµmol/day indicate low levels of niacin.