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Showing posts from November, 2014

Immunity and Immune system

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Adolescence: Problems and Causes of drug / alcohol abuse

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Alcoholism- Effects and Treatment

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Drugs- Types, action

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TYPES OF DRUGS Drugs are 4 types:

AIDS (Acquired Immuno Deficiency Syndrome)- Transmission, Diagnosis, Prevention

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AIDS  (Acquired Immuno Deficiency Syndrome) §   Syndrome means a group of symptoms. §   AIDS is the deficiency of immune system. §   Caused by  HIV   (Human Immunodeficiency Virus),  a  retrovirus  having RNA genome. §   AIDS was first reported in America (1981).

Cancer: Types, causes, diagnosis and Treatment

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CANCER ·     Cancer is an abnormal and uncontrolled multiplication of cells resulting in the formation of tumor. ·     Normal cells show a contact inhibition (contact with the other cells inhibits their uncontrolled growth). Cancer cells appear to have lost this property. ·     Cancer cells form masses of cells called  tumors.