Origin of hormone
Examples from the Web for hormonal
Contemporary Examples of hormonal
The hormonal fuel for both impulses is the same: testosterone.Why These Marines Love ‘Frozen’—and Why It Matters
Aaron B. O’Connell
June 27, 2014
DDT, PCBs, and others have been shown to cause cancer, nervous system damage, and hormonal changes, according to Rochman.Your Favorite Facewash Is Hurting Nemo
Alexa C. Kurzius
June 18, 2014
This hormonal hurricane is not just restricted to the usual boyband demographic of teenagers and young girls.One Direction, Harry Styles and the Princess Diana Connection
September 22, 2013
Femen is not exactly endearing themselves to anyone, except perhaps to hormonal teenage boys.Can Bare Breasts Save Tunisia?
Janine di Giovanni
March 30, 2013
And then they get older and are hormonal and emotional and needy.Why I Choose to Be Child-Free: Readers Share Their Stories
February 27, 2013
Word Origin for hormone
1905, from Greek hormon "that which sets in motion," present participle of horman "impel, urge on," from horme "onset, impulse," from PIE *or-sma-, from root *er- "to move, set in motion." Used by Hippocrates to denote a vital principle; modern meaning coined by English physiologist Ernest Henry Starling (1866-1927). Jung used horme (1915) in reference to hypothetical mental energy that drives unconscious activities and instincts. Related: Hormones.
A Closer Look: Among the most abundant and influential chemicals in the human body are the hormones, found also throughout the entire animal and plant kingdoms. The endocrine glands alone, including the thyroid, pancreas, adrenals, ovaries, and testes, release more than 20 hormones that travel through the bloodstream before arriving at their targeted sites. The pea-sized pituitary gland, located at the base of the brain below the hypothalamus, is considered the most crucial part of the endocrine system, producing growth hormone and hormones that control other endocrine glands. Specialized cells of the nervous system also produce hormones. The brain itself releases endorphins, hormones that act as natural painkillers. Hormones impact almost every cell and organ of the human body, regulating mood, growth, tissue function, metabolism, and sexual and reproductive function. Compared to the nervous system, the endocrine system regulates slower processes such as metabolism and cell growth, while the nervous system controls more immediate functions, such as breathing and movement. The action of hormones is a delicate balancing act, which can be affected by stress, infection, or changes in fluids and minerals in the blood. The pituitary hormones are influenced by a variety of factors, including emotions and fluctuations in light and temperature. When hormone levels become abnormal, disease can result, such as diabetes from insufficient insulin or osteoporosis in women from decreased estrogen. On the other hand, excessive levels of growth hormone may cause uncontrolled development. Treatment for hormonal disorders usually involves glandular surgery or substitution by synthetic hormones.