The hypothalamus is the link between the endocrine and nervous systems. The glands produce and excrete chemical substances known as hormones. Hormones coordinate and control various organs and tissues so the all parts of the body work together smoothly and efficiently. Any deviation from normal has to be remedied immediately or life can be threatened. The amount of hormones released depends on the body's needs.
Levels change in response to infection, stress and changes in chemical composition of the blood.
There is a constant, fine control in this system. For example, the hormone that controls water excretion is itself controlled by the amount of water in the body. Stress can also interfere with the glands and may cause an overproduction of some hormones. Additionally, in the absence of a proper spark from various hormones produced by the pituitary, hypothalamus, thyroid and adrenal glands, we cannot achieve optimal aerobic conversion of food to energy. Trace minerals are crucial to proper endocrine function.