Endocrine System

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The Hormones

1.2     A hormone is a chemical substance which is produced within the body. Hormones serve as a means of communication among the various parts of the body to help them function in a proper way. The hormones control such body activities as growth, development and reproduction and regulate a variety of body functions including the way the body uses food and the reaction of the body to emergencies. Healthy blood contains fairly exact levels of several other chemical substances. Hormones regulate the levels of these other chemicals in the blood for us to remain healthy.