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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

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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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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Early in the twentieth century, when malnutrition was common, companies such as this one advertised Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Diseases Common to the Elderly Diseases Common to the Elderly
Erosion of palatal surfaces of maxillary teeth due to chronic vomiting. Erosion of palatal surfaces of maxillary teeth due to chronic vomiting.
Drugs Used in Parkinson's Disease Drugs Used in Parkinson's Disease
Common Prefixes Cont. Common Prefixes Cont.
Common Abbreviations and Symbols Used by Massage Therapists Cont Common Abbreviations and Symbols Used by Massage Therapists Cont
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