Is secreted from brains of human and animal in small quantities. An article by sulfur protein can therefore easily with the zinc, iron and phosphorus. This article is very important to the vitality of the human body (to reduce cholesterol - food - to strengthen the heart - and control of breathing.
And increase secretion of this article of the human brain is gradually beginning from the age of 15 until the age of 35 years. Ifrazha then at least until after the age of sixty. It was not easy to obtain from the rights. As for the animal has been found by few.