Film Industry. Statistics and facts about the film industry Entertainment is big business in the United States. It is expected, that the sector as a whole will have generated 564 billion U.S. dollars in revenue by the end of 2014.
1 Vitamins B-please see Vitamin B group for details. 2  Vitamin C is very important for the immune system, adrenal glands and the manufacturing of connective tissue and detoxification of drugs and chemicals. 3  A deficiency in this vitamin leads to tiredness and a less effective immune system. Without this mineral, you can become very fatigued. 2  Zinc is an important mineral which regulates inflammation, protects against toxic exposure, de-toxifies foreign chemicals and helps with digestion. 3  Without it, you can suffer from: depression, lethargy, fatigue, frequent infections, irritability and muscle fatigue.
Among other affects, the group of B Vitamins is involved in regulating the body's level of tryptophan, an amino acid important for maintaining healthy sleep (covered later). 1  Vitamin B3 (niacin) often promotes sleep in people who have insomnia caused by depression and increases effectiveness of tryptophan. It is reported to help people who fall asleep rapidly but keep waking up during the night. Vitamin B5 (pantothenic acid) is good for relieving stress and anxiety. A deficiency of B5 can cause sleep disturbances and fatigue. Vitamin B9 (folic acid) deficiency has been linked to insomnia.