LDL or bad cholesterol comes from food that is a high source of cholesterol and/or saturated fats. Plaque forms when bad or LDL cholesterol builds up in your bloodstream and attaches to the arterial wall, as more LDL builds up the plaque becomes larger, this can become a major problem for your cardiovascular system. Because plaque is a substance that has rough edges, it reduces the elastic nature of the artery which means your heart will have to work double-time to pump the necessary blood to all your limbs, that will mean your limbs won’t get the amount of oxygen that they require to function properly. Plaque can also narrow the area blood has to pass through, this means your heart has to work overtime and overall capacity of your cardiovascular system is lowered. When the LDL cholesterol embeds itself in the wall of the artery it than damages the artery then blood pressure expands it which causes an aneurysm. When an aneurysm is too weak there is a high possibility of it bursting, when that happens it leaves the cells in and around that area without oxygen. If that artery is connected to a major vital organ the person will most likely die. When the blood flow is slowed it shows a greater risk for blood clots and although blood clots are natural and important to healing broken blood vessels, if blood clots gather inside the blood vessel this proves to be a serious health risk. The clots have the possibility to get stuck and completely cut off the blood flow to cells, leaving them without oxygen and causing them to die. If a clot gets inside a blood vessel connected to a major organ this could cause the person to die. The heart is fed by the coronary artery, if plaque or a blood clot blocks off blood flow to the heart, the heart ...
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...tance. Things that may protect you from cancer are; a proper balanced diet and a strong immune system. Your body has a sort of, command center that controls the growth of skin. Sometimes the cell reproduction process goes wrong and the newly created cell is a mutation of the original cell. Most cell mutations do not survive long enough to become harmful but sometimes the genetics of the cell allows it to survive and the cell could become cancerous. Some things that make a cell cancerous are; it not being attached to the command center, when the cell doesn’t give notice to the signal sent to tell it to stop growing, and when the cell gains its own blood vessel network system. Cancerous cells can move around and take over other sections of the body which destroys the person. Cancer and heart disease and many other severe conditions are there for many years before you e
However, exposing the body to high levels of cholesterol results in hypertensions and other cardiovascular disorders. High levels of cholesterol can even lead to atherosclerosis, a disposition of fatty substances, and fibrosis of the inner arteries.
What is skin cancer ? first, Skin is the largest organ of the body . it gives our body protection from harms, injuries and infections. It also organize the body temperature and dispose of waste substances through the glands . out layer of the skin is called the epidermis and the layer underneath is known as the dermis . Skin cancer is type of disease where malignant cancer cells are to be found the outer layer of a person's skin and is the uncontrolled development of the irregular skin cells .It occurs when unrepaired DNA damage to skin cells caused by ultraviolet radiation from sunlight or genetic defects, that lead the skin cells to duplicate rapidly and form malignant tumors. there are three main types of skin cancer which are basal
Coronary artery disease (CAD) is the most common type of multifactorial chronic heart disease. It is a consequence of plaque buildup in coronary arteries. The arterial blood vessels, which begin out smooth and elastic become narrow and rigid, curtailing blood flow resulting in deprived of oxygen and nutrients to the heart [1].
Coronary heart disease is defined by the hardening of the epicardial coronary arteries. The buildup of plaque in the arteries slowly narrows the coronary artery lumen. In order to better understand the physiology of the disease, it is important to first know the basic anatomy of the human heart. The aorta, located in the superior region of the heart, branches off into two main coronary blood vessels, otherwise known as arteries. The arteries are located on the left and right side of the heart and span its surface. They subsequently branch off into smaller arteries which supply oxygen-rich blood to the entire heart (Texas Heart Institute, 2013). Therefore, the narrowing of these arteries due to plaque buildup significantly impairs blood flow throughout the heart.
Cancer is the term used to describe a group of diseases consisting of hundreds of ailments and although there exists so many different types of cancer, they all begin in a similar way. The body is made up of over a trillion cells, and cancer is the uncontrolled growth of malfunctioning cells in the body (Dawson, 1996). “Normal body cells grow, divide, and die in an orderly fashion. During the early years of a person’s life, normal cells divide faster to allow the person to grow. After the person becomes an adult, most cells divide only to replace worn-out or dying cells or to repair injuries” (American Cancer Society, 2012).
Since 1960 the age-adjusted mortality rates for cardiovascular disease (CVD) has declined steadily in the U.S. due to multiple factors, but still remains one of the primary causes of morbidity and premature mortality worldwide. Greater control of risk factors and improved treatments for cardiovascular disease has significantly contributed to this decline (Centers for Disease Control and Prevention, 2011). In the U.S. alone it claims approximately 830,000 each year and accounts for 1/6 of all deaths under the age of 65 (Weiss and Lonnquist, 2011). Based on the 2007 mortality rate data an average of 1 death every 37 seconds is due to cardiovascular disease (Lloyd-Jones et al., 2009). Controlling and reducing risk factors is crucial for saving lives. There are a number of contributing risk factors for cardiovascular disease, which may appear in the form of hereditary, behavioral, and psychological, all of which ultimately converge in social or cultural factors.
Atherosclerosis is the most common cause of CAD. Atherosclerosis is a progressive disease characterized by fat deposits in the arteries causing them to block the normal passage of blood. No one is quite sure how atherosclerosis develops. The plaque consists mostly of cholesterol, phospholipids and smooth muscle cells. They also reduce the size of the lumen of the affected artery which impairs the blood flow of this artery and later on could form a thrombus that will completely occlude the vessel. “Unfortunately, signs and symptoms of atherosclerosis usually don’t develop until at least 70% of an artery’s lumen has become obstructed. Angina is almost always the first symptom to appear.”(Journal: The killer behind CAD,2010). Modifiable factors that could prevent the occurrence of CAD include cigarette smoking, obesity, physical inactivity, atherogenic diet like diet high in cholesterol, use of contraceptive and hormone therapy replacement. “Women continue to ...
In the past decades the incidence of heart disease has increased, about three million people dying of cardiovascular disease in China per year (according to statistics from the Ministry of Public Health of China), which draws people’s great concern to find ways to take precautions. With the development of element analytical method, some types of chemical substances that are beneficial to cardiac health have been found. Lycopene is a very popular natural anti-oxidants found in recent years (Dai, 2011), as well as capsaicin and dietary fiber. Whilst some research focuses on the mechanism of action, little attention has been paid to usability issues, in particular to the generalization of health-giving chemical substances in ordinary meals. There is a lot of evidence that vegetables can positively contribute to prevent heart diseases, by supplying biologically active components. This article continues previous research in the field of Biochemistry and Medical Science, mainly trying to study the effective components which can prevent heart disease in edible vegetables.
Tumors are formed by the alteration of the body’s own cells. This can be caused by environmental factors such as radiation, like UV exposure, chemicals or viruses 1. These can disrupt genes that control growth and cause an increase in cell division and proliferation. Proto-oncogenes are those genes that control normal but essential cell processes that keep cell growth and death in check. Two important categories are apoptosis genes, which regulate cell death, and tumor suppressor genes, which decrease cell propagation 1 . If these genes were mutated to the point where they cannot produce a functioning protein, cell division would continue far past what it was supposed to and unhealthy cells would be allowed to live and continue to multiply. This is what creates a malignant tumor. Certain conditions in the body can also promote the growth of cancer cells. One of these is a deficiency of natural killer (NK) cells, which are able to kill cancer cells by creating a pore in the cell membrane with perforin and releasing granzymes into the cell. Low levels of perforin allow for tumor growth 1. Chronic inflammation can also ...
What is coronary heart disease (CHD)? It is a disease when plaque gets built up in the coronary arteries; and the job of the arteries are to provide rich-oxygenated blood to the heart muscle. Built plaque in the arteries leads to atherosclerosis and the plaque that is built can result from over the years. Throughout the years, the plaque tends to get hard or can rupture. If hardened, the arteries are now narrow and have weakened the flow of blood that travels to the heart. Blood clots can form from the plaque rupturing which can cause a great chance for the blood flow to be mostly blocked or blocked altogether. There are other names for coronary heart disease such as coronary artery disease, atherosclerosis, ischemic heart disease, etc.
To prevent new cancers from taking off, scientists look at risk factors and protective agents. Anything that increases your chance of getting cancer is called a cancer risk factor; anything that lessens your chance of getting cancer is called a cancer protective factor. Some risk factors for cancer can be averted, but many cannot. For instance, both smoking and inheriting certain genes are risk factors for some types of cancer, but only smoking can be avoided. Normal excise and a healthy diet can help reduces the chances, but do not promise.
Skin Cancer is caused by hereditary factors, overexposure to the sun, and weak immune systems. (“Skin Cancer” infotrac.com) One reason people tend to get skin cancer is when someone in your family has passed their genes down to you, known as hereditary. Normally hereditary is one of the causes in the development of melanoma. For all types of skin cancers, overexposure of the skin to UV radiation in sunlight is the most frequently blamed source of skin cancer. “Research suggests that sunburns received early in one’s childhood can lead to skin cancer later in life” (“Skin Cancer” infotrac.com). For example, when someone gets sunburned, you usually don’t know till ten to twenty years after and that’s why people don’t get skin cancer till they reach their twenties.
High cholesterol is the best known of all the many threats to a healthy heart. When excess amounts fatty like plaque substance build up along the walls of the arteries, you face a significantly higher risk of a complete blockage, leading to a heart attack or stroke. At normal levels, cholesterol is not a bad thing. On the other hand, its an essential material used by the body to make cell walls and produce hormones, such as testosterone and estrogen. The body produces its own supply of cholesterol in the liver, it’s also found in various animal products such as meats, eggs, and, milk. Cholesterol only becomes a threat when the body can’t use or get rid of excessive amounts of it.
Etiology Myocardial infarction occurs when the coronary arteries are blocked by a blood clot. It is commonly known as a “heart attack”. The heart needs its own constant supply of oxygen and nutrients to work properly. Two coronary arteries deliver oxygenated blood to the heart, and if one of these two arteries fails or becomes blocked, then a portion of the heart will not acquire the necessary oxygen. This clot could be because of CAD (coronary artery disease), which happens when the inner walls of the coronary arteries thicken because of buildup of cholesterol, fatty deposits, calcium among other elements that are carried in the blood (Boston Scientific, 2009).
Healthy eating is what we all need to consider in our everyday life. Healthy eating good prevent you from getting cancer, diabetes, and heart disease. There are many choices that we can make that can either benefit us or be hazardous to our health. There are many factors out there that can cause harm to the body. I have chosen three to discuss. What I am going to be talking about throughout my paper will be cancer, diabetes, and heart disease. I will be discussing what foods that would benefit and lessen your chance in getting these diseases. Also we will talk about the foods and other unhealthy choices that can increase your risk of getting these diseases. Eating healthy is what we need to teach our children and enforce it in your home. If we teach our children to start eating healthy at an early age then it could save them from having to struggle with getting these risk factors such as cancer, diabetes, and heart disease. We as parents need to instill good healthy eating habits for our children and make sure that our children are getting exercise of some sort on a daily basis. Adding exercise to your life will also lower your chances of becoming obese and having to worry about getting these risk factors.