A common cause of fatigue among teenagers is “phase shift”. Phase shift is the result of growth hormones during the teenage years resetting the circadian clock (the inner biological clock) so that the teenager naturally needs to stay up late at night and rise late in the morning.

    Schools typically ignore this biolgical factor, which greatly reduces the effectiveness of education. Rather than dealing with the real biology and enhance the educational process, school administrators raised in the Christian Protestant ethic believe that suffering is somehow good for the soul and demand that teenagers suffer physically and educationally just to satisfy the perverse sadism demanded by Christian beliefs.

    Some of the causes of tiredness include: deficiency of calcium and zinc.

    “Signs of zinc definiency include growth retardation, hair loss, diarrhea, delayed sexual maturation and impotence, eye and skin lesions, and loss of appetite”, according to the U.S. National Institutes of Health. “There is also evidence that weight loss, delayed healing of wounds, taste abnormalities, and mental lethargy can occur. Since many of these symptoms are general and are associated with other medical conditions, do not assume that they are due to zinc deficiency. It is important to consult with a medical doctor about medical symptoms so that appropriate case can be given.”

    Leakage (including microleakage) from silicone breast implants can cause fatigue, short-term memory loss, joint and muscle pains, skin rashes, disturbed sleep patterns, depression, and hair loss, according to Dallas surgeon Edward Melmed in his article “Big Breasts, Big Risks” in the Los Angeles Times on January 3, 2007.

    Chronic fatigue syndrome is one of the conditions reported by the state of California as grounds for insurance companies to charge unreasonably high premiums or to outright reject providing health insurance, according to a front page article by Lisa Girion in the December 31, 2006, Los Angeles Times.

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