The endocrine system is part of the regulatory system in animals and helps maintain the internal balance of the body. Both vertebrates and invertebrates have endocrine systems. The endocrine system regulates many functions of the body, including growth...

The endocrine system controls and regulates body metabolism and other activities by the production of hormones. Hormones are a class of molecules, varying in actual biochemical composition, that act as messenger molecules. Hormones may be steroids,...

Often called the ductless glands, the nine distinct glands of the human endocrine system secrete hormones or "chemical messengers" directly into the blood stream, without the ducts found in the exocrine system. The endocrine system also includes...

Endocrine glands are collections of tissue which manufacture and release chemical messengers called hormones. Hormones are chemicals which affect the functioning of some distant organ or tissue. Unlike exocrine glands (such as sweat glands and salivary...

The endocrine system is an integrated system of small organs that involve the release of extracellular signaling molecules known as hormones. The endocrine system is instrumental in regulating metabolism, growth and development and puberty, tissue...

   For some of us it would be a body weight, at which we would feel comfortable, a body weight at which we could carry out our daily activities without much effort. Also, a body weight at which we would find that last year's clothes...