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Beta-carotene is a member of the carotenoid family and has over 500 relatives.
Carotenoids are yellow-to-red pigments found in all green plant tissues and in
some species of algae. So far 21 different carotenoids have been found in human
blood. The most abundant ones are alpha-carotene, beta-carotene, lutein,
lycopene, cryptoxanthin and zeaxanthin. A molecule of alpha-carotene, beta-
carotene, or cryptoxanthin can be split into two molecules of vitamin A in the
body but the conversion of beta-carotene is by far the most effective. The six
carotenoids are all antioxidants. They are very effective in neutralizing a
highly reactive for of oxygen called singlet oxygen but also, to some extent,
act to break up the chain reactions involved in lipid peroxidation. Numerous
studies have shown that people who consume a diet rich in dark yellow orange
vegetables (carrots) and dark green vegetables (broccoli) are much less likely
to develop cancer and heart disease. It has also been established that people
with low levels of beta-carotene in their blood have a higher incidence of heart
disease and cancer, particularly lung cancer. The National Cancer Institute
endorsed a study which found that women who consume lots of beta-carotene rich
fruits and vegetables have a lower chance of getting cancer, including breast
cancer. The Institution says that regularly eating lots of fruits and
vegetables plays a key roll in cancer prevention, but whether the preventative
action comes from beta-carotene or other nutrients in the produce has yet to be
determined. For people who don't like eating their fruits and vegetables, a
beta-carotene supplement pill was introduced into the market. Millions of
vegetable hating Americans hoped that by taking a pill instead of eating
vegetables, they could get the same rewards as their counterparts who enjoy the
taste of fruits and vegetables. But officials at the National Cancer Institute
released the results of two large studies designed to put the benefits of beta-
carotene supplements to the test. One followed 22,071 doctors who for 12 years
smokers had to be stopped prematurely because it seemed to me making the rate ...
A. How can an infection in Cari's nasal passages and pharynx spread into her sinuses? The infection in Cari's nasal passages and pharynx was able to spread into her sinuses due to the fact of how close the passages and sinuses are to each other, and the sinuses being a drainage area for the nasal passages. B. What is the cough reflex? Descr...
Acquired Immune Deficiency Syndrome, better known as AIDS, is caused by the incurable HIV virus. AIDS is a deadly disease that deteriorates the immune system. There are two groups of HIV (human immunodeficiency virus), HIV-1 that occurs throughout the world and HIV-2 that mainly occurs in Africa. The HIV virus enters the white blood cells and ta...
Tourette Syndrome And Other Tic Disorders Definitions of Tic Disorders Differential Diagnosis Symptomatology Associated Behaviors and Cognitive Difficulties Etiology Stimulant Medications Epidemiology and Genetics Non-Genetic Contributions Clinical Assessment Of Tourette Syndrome...
During the past quarter century, abortion has joined race and war as one of the most debatable subject of controversy in the United States. It discusses human interaction where ethics, emotions and law come together. Abortion poses a moral, social and medical dilemma that faces many individuals to create a emotional and violent atmosphere. There ar...
is the name applied to a specific method of investigating unconscious mental processes and a form of psychotherapy. The term also refers to the systematic structure of psychoanalytic theory, which is based on the relation of conscious and unconscious psychological processes. The technique of and much of the psychoanalytic theory are based on its...
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Mucous membranes of the nose, parasinal sinuses, pharynx and middle ear are all connected in the throat. A cough reflex is a long drawn and deep inhalation followed by a complete closure of the glottis which results in a strong exhalation that suddenly pushes the glottis open and sends a blast of air through the upper respiratory passages. This...
20 Little Known Facts About The Human Body 1.A human being loses an average of 40 to 100 strands of hair a day. 2.A cough releases an explosive charge of air that moves at speeds up to 60 mph. 3.Every time you lick a stamp, you're consuming 1/10 of a calorie. 4.A fetus acquires fingerprints at the age of three months. 5.A sneeze can exceed...
The task of trying to quantify a person's intelligence has been a goal of psychologists since before the beginning of this century. The Binet-Simon scales were first proposed in 1905 in Paris, France and various sorts of tests have been evolving ever since. One of the important questions that always comes up regarding these tools is what are the...
What would it be like to die so young and so fragile? What would it be like to kill something so young and so fragile? Abortion, in my definition, is the taking of a life. Now it is hard for me to sit here and type this paper when I know good and well that if my daughter or wife were ever raped I would want whatever was inside of them out -- imm...
Rasmussen College Author Note This paper is being submitted on December 12, 2016, for Professor Cowherd NUR3177 Health Assessment course. Based on the Developmentally Appropriate Comprehensive Health Assessment Summary (week 6 assignment), Formulate a Comprehensive . Include each of the following elements using the Template: 1...
Canada still has not come to a decision on the need for legalizing euthanasia or assisted suicide. A woman named Sue Rodriguez brought it out into open to become one of Canada's famous court debates. In February of 1994, she ended her life with the assistance of her doctor. She suffered from a terminal illness called ALS (a.k.a. amyotrophic late...
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The article by Sharon Begley in the July 13, 1998 issue of Newsweek entitled "You're OK, I'm Terrific; '' Backfires" talks about one of the possible problems with instilling in today's youth: violence. The article proposes that "narcissists are super sensitive to criticism and slights, because deep down they suspect that their feeling of supe...
