Teen Health Course 3Chapter 16:
Your Body SystemsStudent Web Activities - Teacher ContentLesson 1
Answers- The two things teens can do to reduce the risk of fractured bones later in life are eat calcium-rich foods and get plenty of physical activity.
- The build up and breakdown process of bones is called remodeling..
- The six nutrients your body needs to build strong bones are calcium, vitamin A, vitamin C, vitamin D, magnesium and zinc.
- The impact of weight and pull of muscle during exercise stimulates the body to build stronger, denser bones.
- Habits that many teenagers have that can steal calcium from their bones and weaken their skeletons for life include:
a. Skipping meals
b. Replacing milk with nondairy drinks like soda or fruit-flavored juices
c. Cigarette smoking
d. Poor diets
e. Eating disorders
Additional Resources for TeachersBelow are some additional resources on keeping the skeletal system healthy. - The California Dairy Council: http://www.dairycouncilofca.org/
- National Osteoporosis Foundation: http://www.nof.org/
- Niams: http://www.niams.nih.gov/hi/topics/osteoporosis/kidbones.htm
- University of Arizona : http://ag.arizona.edu/maricopa/fcs/bb/teen.html
Lesson 4
Answers- Deep breathing can relieve headaches, backaches, stomachaches, sleeplessness, and stress.
- The body's automatic reaction to stress is rapid, shallow breathing.
- Letting your stomach expand as much as possible insures that you breathe in as much air as possible.
- Pursing your lips allows you to control how fast you exhale and keeps your airways open as long as possible.
- The natural mood enhancers deep breathing releases into the body are called endorphins.
Additional Resources for TeachersBelow are additional resources that discuss the use of deep breathing as a way to reduce stress and improve health. - Mayo Clinic:
http://www.mayoclinic.com/print/yoga/CM00004/METHOD=print - Help Guide:
http://www.helpguide.org/mental/stress_relief_meditation_yoga_relaxation.htm#breathing - CNN:
http://archives.cnn.com/2002/WORLD/europe/12/11/biz.trav.breathing/ - iVillage:
http://health.ivillage.com/mindbody/mbstress/0,,4866,00.html - National Women's Health Resource Center :
http://www.healthywomen.org/take10/january2005/fitnessminute.html
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