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1. I chose to do heart disease because my family has a history of it so I find it intriguing to research. Coronary heart disease also known as (CHD) is when your coronary arteries become narrowed by build-up of fatty material within their walls. This condition is called atherosclerosis and the fatty material is called atheroma. The most common symptom of heart disease is angina which is commonly known as chest pain. It can be described as discomfort, heaviness, pressure burning or just a painful feeling in the chest area. Sometimes it can be misinterpreted as indigestion or heartburn. Other symptoms include shortness of breath, a faster heart beat or palpitations. Heart disease is the leading cause of death for both men and women. More than half of the deaths due to heart disease in 2009 were in men. Coronary heart disease is the most common type. Coronary heart disease cannot be cured however; there are different treatments that allow it to be able to be managed effectively. Most of these treatments include a lifestyle change and medication. Heart disease can be inherited however even if you inherit the risk factors such as high blood pressure, or obesity there are measures that can be taken to avoid developing heart disease. My grandfather died from heart disease at a young age. I never met him and my dad was only a teenager when he passed away. My father's side of the family inherited the obesity and high blood pressure that I mentioned above and they didn't take precautionary measures to keep themselves healthy. Due to this one brother, one sister, and my dad's father passed away from this disease.

2. Cancer cells have many different types. The most common type of cancer is carcinoma or cancer of the skin. Carcinomas develop in epithelial tissue, which covers the outside of the body and lines organs, vessels, and cavities. Cancer cells can be found in nearly every mammal. From humans to animals. Humans are the most common though. Cancer cells avoid normal cell life. They hide in the body and divide uncontrollably and produce extra daughter cells. These cells need blood vessels to survive. They do not stay in one particular part of place in the body, they basically roam the body freely and spread out. These cells morph and change shape, so them having one shape and describing it would not be 100% correct. Because I could describe a form the cell takes, then it could change its shape altogether. Cancer cells use much more glucose to grow than normal cells use. Glucose is a simple sugar required for the production of energy through cellular respiration. Cancer cells use sugar at a high rate to continue to divide. These cells do not obtain their energy solely through glycolysis, the process of "splitting sugars" to produce energy. Cancer can affect all of the bodies systems, it is not bias to just one of them.

According to the World Health Organization, about 30% of all cancer cases are preventable. It has been estimated that only 5-10% of all cancers are attributed to hereditary gene defect. The rest are related to environmental pollutants, infections, and lifestyle choices (smoking, poor diet, and physical inactivity). The single greatest preventable risk factor for cancer development globally is smoking and tobacco use. About 70% of lung cancer cases are attributed to smoking.