In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
Renal regulation of sodium and potassium balance
Preparing a Urine Specimen for Microscopic Examination (for Classroom Evaluation Only)
Preparing a Urine Specimen for Microscopic Examination (for Classroom Evaluation Only)