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Nelson Education > School > Secondary Science > Biology 12 > Student Centre > Web Activities > Chapter 8
 

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UNIT 3: HOMEOSTASIS

Chapter 8 – Chemical Signals Maintain Homeostasis

Page Number
Question
p. 371

Try This Activity: Chemical Signals and Sports
Find out more about the use of banned drugs in sports.

a. Choose one banned drug and explain the unfair advantage it provides.
b. What are some of the health risks associated with its use?
c. Identify some of the technologies used to detect whether an athlete is using the drug.

Anabolic Steroids
Anabolic Steroids is one of eight parts in a series of short articles published by ESPN.com on the subject of drugs and athletics. The articles focus primarily on the reasoning behind taking banned substances and the health effects of these substances. Students can access the remainder of the articles by clicking on the “Drugs and Sports” icon on the left side of the page.

Sport - The Sinister Side
Sport - The Sinister Side is a series of short articles outlining some of the more common banned drugs and their side effects. There is also some discussion of prevalence of drugs in sport, and the role of administration.

Olympic Medical Commission
On the Olympic Medical Commission Web site, there are links to documents concerning the methods and measures taken to prevent the use of banned substances in the Olympic games. A link to the right of the page leads to a document reporting the commission’s activities during the Salt Lake City Olympic games.

Doping
From the Amateur Athletic Foundation of Los Angeles comes this essay on various Olympic topics including Doping. It provides a good, brief summary of the issue.

Common Drugs of Use and Abuse
This extensive list of links relating to Drug Use in Sports includes a section on Common Drugs of Use and Abuse, which contains links and information about the main categories of performance enhancers.

Listing of Banned Substances
This Listing of Banned Substances and performance enhancing methods is published by the World Anti-Doping Agency - a major player in the global athletic scene.

Drug Classification Booklet
The Canadian Centre for Ethics in Sport has published the Drug Classification Booklet, which informs athletes of the substances banned in Canada for use in competition.

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p. 391

Explore an Issue – Take a Stand: Protecting Athletes
Statement: Not enough is being done to prevent the use of banned substances in sports.

  • In your group, research the issue. Search for information in newspapers, periodicals, CD-ROMs, and on the Internet.

Prepare a list of points and counterpoints for your group to discuss. You might consider these questions:

i. Are some countries complicit in helping athletes hide positive drug tests? Are athletes being sacrificed for national glory?
ii. Are organizers of events compromised in their desire to identify users of banned substances by continually pushing for more records?
iii. What improvements could be made to help eliminate banned substances from athletics?

Drugs in Sports
Yahoo’s list of Web sites related to Drugs in Sports includes many international sites with information on policy and regulations, as well as some headline news stories.

Drug Use in Sports
This legal issue Web site provides an excellent assortment of links relating to Drug Use in Sports, many to do with policy by various professional and amateur sports organizations, and global athletic authorities. Some listings are for sites devoted to strategies to prevent drug abuse among athletes.

World Anti-Doping Agency
The World Anti-Doping Agency is the foremost global organization dedicated to preventing the abuse of performance enhancers by athletes; it works in conjunction with the Olympic organizers to police the banned substance code at all Olympic games. Their Web site has a range of information on the current codes, the organization, activity at past Olympic games, and an FAQ page.

Canadian Centre for Ethics in Sport
The Canadian Centre for Ethics in Sport is the agency responsible for executing our country’s doping control program. Their Web site provides information on this program, and Canadian regulations. Under the ‘Drug-Free Sport’ section is a link to download the Canadian policy document.

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p. 399

Section 8.5 questions

15. To alleviate the symptoms of menopause, many women turn to hormone replacement therapy (HRT). Although estrogen–the main hormone in HRT–reduces “hot flashes,” prevents bone loss, and may even improve memory, it raises the risk of blood clots and ovarian and breast cancer. Using the Internet and other resources, investigate and write a brief report on what is being done to meet the demand for HRT without subjecting women to its risks. Include some lifestyle changes that might help in the management of menopause.

Menopause Online
Menopause Online is a Web site by a lifestyle magazine that outlines the treatment options for menopausal symptoms. Both hormone replacement therapy and ‘alternative’ treatments are discussed.

Menopause and Progesterone
Menopause and Progesterone is a well-written, informative article about hormone replacement therapy and the advantages of natural progesterone as a treatment for menopause. Note that the source of this Web page is an alternative health company that sells natural progesterone.

Menopause News
A series of articles on a range of alternative programs and treatments for menopausal symptoms are featured on Menopause News.

Natural Progesterone
Natural Progesterone is the treatment of choice to alleviate symptoms of menopause, according to this book excerpt posted on the Web site of a company that sells natural progesterone. The essay contains a long list of possible side effects from estrogen therapy.

The Menopausal Patient and Hormone Replacement Therapy
This is a balanced article with good coverage of the symptoms associated with menopause, the benefits and risks of estrogen therapy, and alternative treatments. A medical doctor explains the results of research into The Menopausal Patient and Hormone Replacement Therapy from Louisiana State University.

What do I need to know about hormone replacement therapy?
From the Society of Obstetricians and Gynaecologists of Canada comes the answer to the question, The article What do I need to know about hormone replacement therapy? presents Canada-specific information in an easy-to-read style. Further facts on menopause and hormone therapy are accessible via the links at the bottom of the page.

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