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Hormone - Wikipedia


A hormone is any member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target ...

What Are Hormones and What Do They Do? | Hormone Health ...


Hormones are special chemical messengers in the body that are created in the endocrine glands. These messengers control most major bodily functions, from ...

Hormones: MedlinePlus


Hormones are your body's chemical messengers. They affect many processes including mood. Too much or too little of a certain hormone can be serious.

Feeling Hormonal? - WebMD


Hey, we all are. Hormones control just about every aspect of our physical and mental health — and when they go off-kilter, they can trigger anything from acne  ...

Definition: Hormones - KidsHealth


Hormones are chemical substances that act like messenger molecules in the body.

You & Your Hormones | Glands | Thyroid gland


Jan 14, 2015 ... The thyroid gland is part of the endocrine system and is responsible for producing and releasing thyroid hormones into the bloodstream.

For Women > Menopause and Hormones: Common Questions - FDA


Sep 28, 2015 ... During menopause a woman's body slowly produces less of the hormones estrogen and progesterone. This often happens between ages 45 ...

You & Your Hormones | Glands | Hypothalamus


Jan 21, 2015 ... The hypothalamus is a part of the brain that has a vital role in controlling many bodily functions including the release of hormones from the ...

Hormones, Receptors and Target Cells - arbl.cvmbs.colostate.edu


Jul 9, 1997 ... What exactly are hormones and how are they different from "non-hormones"? Hormones are chemical messengers secreted into blood or ...

How Do Hormones Work? | Fooling With Nature | FRONTLINE | PBS


Hormones are chemical messengers that travel throughout the body coordinating complex processes like growth, metabolism, and fertility. They can influence ...

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What are Hormones? - News Medical


Dec 2, 2013 ... Hormones are chemical messengers that are secreted directly into the blood, which carries them to organs and tissues of the body to exert their ...

Definition of Hormone - MedicineNet


Hormone: A chemical substance produced in the body that controls and regulates the activity of certain cells or organs. Many hormones are secreted by special ...

Slideshow: Hormone Imbalance: Symptoms and Treatment - WebMD


Oct 22, 2015 ... Do you always feel tired? Find out if you have a hormone imbalance.