Prostate cancer prevention and treatment essays

Prostate cancer prevention and treatment essays Prostate cancer prevention and treatment In 2005, over 232,000 men will be diagnosed with prostate cancer, and over 30,000 men will die from it.(Prostate Cancer Facts.) Thats one new case every two and a half minutes and a man dieing every seventeen minutes. That leaves men with a 33% higher risk for receiving prostate cancer than woman have for receiving breast cancer.(Prostate Cancer Facts.) One in six Americans men will receive prostate cancer.(Nobody Knows) A non smoking man is more likely to get prostate cancer that the next seven most common cancers combined.(Nobody Knows) With so many people getting prostate cancer you can see why it has become the most common cancer in America and the number two cause of death in non smokers.(Prostate Cancer Facts.) But there are things that you can do to considerably lower your risk for contracting prostate cancer, and if its contracted there are many options to try to remove it. First off we need to establish just what exactly a prostate is, as most people do not know. A healthy prostate is about the size of a walnut, and it is shaped like a donut.(Prostate cancer) The prostate is located between the rectum and the bladder and is connected to the urethra (the tube that leads out of the body).(The Prostate) The prostate gland is part of a mans body which produces the fluid that mixes in with semen during ejaculation. Next, I felt as though people need to be informed as to just exactly what cancer is. The human body is constructed of cells, the building blocks of life. When cells get old they purposely die so that a new cell can take its place. During this routine cell death and rebirth, cells can develop that do not follow the normal patterns of death and rebirth. Causing cells not to die when they should and reproducing when they shouldnt. This ultimately leads to the ...

Reaction Definition in Chemistry

Reaction Definition in Chemistry A reaction or chemical reaction is a chemical change which forms new substances.  In other words, reactants react to form products that have a different chemical formula. Indications a reaction has occurred include temperature change, color change, bubble formation, and/or precipitate formation. Chemical Reactions Take Different Forms The major types of chemical reaction are: Synthesis or Direct Combination Reaction - Reactants form a more complex product.Decomposition or Analysis Reaction - A reactant breaks into two or more smaller products.Single Displacement or Replacement Reaction - Also called a substitution reaction, this occurs when the ion from one reactant changes place with another.Double Displacement or Replacement Reaction - Also called a metathesis reaction, this occurs when both cations and anions of the reactants trade places to form products. While some reactions involve a change in the state of matter (e.g., liquid to gas phase), a phase change is not necessarily an indicator of a reaction. For example, melting ice into water is not a chemical reaction because the reactant is chemically identical to the product. Reaction Example: The chemical reaction H 2(g)  ½ O 2(g) → H 2O(l) describes the formation of water from its elements.