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Cancer:The deadly disease

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  Cancer, the uncontrolled growth of cells, is a major cause of death throughout the world. In 2007, it killed ~7,900,000 people worldwide, a value that represents ~13% of total deaths. In the U.S., the number of deaths caused by cancer is second only to that from cardiovascular disease. While great strides have been made in the treatment of cancer over the past 50 years, it continues to be a major health concern and, therefore, extensive efforts have been devoted to searching for new therapeutic approaches. The mechanism that underline the development of cancer and oncogenic transformation of cells. It's treatment  and control have been one of the more intense area of research in biology and medicine.  Cancer is not a single for disease but it is group  of many disease caused when the property of contact inhibition is lost in cell. As a result there is uncontrolled growth of cells  resulting in the formation of mass of cell called tumors . Tumours are of two ty...

Types Of Drugs and Their Impact Societies.

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 Drugs are the substance that are use to cure any diseases but when this substances are taken in amount more than required and harms one's health is known as drug addiction.  There are mainly four categories of drugs : 1.Stimulants 2.Depressants 3.Hallucinogens 4.Dissociative anesthetics  5.Narcotics analgesic  6.Canabionoids. 7.Inhalants Now let us talk about there main  effects and some examples: 1.Stimulant symptoms include increased alertness, high energy and mood, decrease appetite, tachycardia and hypertension. Example are cocaine, amphetamines, tobacco etc.  2.Depressants  slow down the operation of brain and the body. Example of CNS depressants include alcohol, barbiturates,  anti-anxiety  tranquilizers, GHB etc.  3.Hallucinogens cause the user to perceive things  differently  than they actually are. Symptoms include  sudden mood change, flashbacks, effect depend on context of consumption.  4.Dissociative anes...