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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.
Structures of the human myelencephalon (medulla) and metencephalon.
Structures of human DNA polymerase g (left) and T7 phage DNA polymerase (right) holoenzymes
Environmental Influences on Personality
Human reproduction
Predicted polypeptide sequences translated from potential ORFs in the human TUBA3C gene
Human karyotype