Tuesday, January 8, 2013

Are these symptoms of heart disease

Are these symptoms of heart disease?
I get choking feelings sometimes, and experience extreme weakness. For 3 days now, I am feeling pain when I press the left side or when there is movement involving the upper chest, just off the centre.Are these signs of a heart ailment. If it is not what should I do to help prevent this discomfort.
Heart Diseases - 2 Answers
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1 :
Those are indeed symptoms of a heart ailment. They're also symptoms of a plethora of other more common and less serious ailments. You can't get a diagnosis on-line, and if you're young and at low risk for heart disease, the chances are great that you have something altogether different, but that's for you and your doctor to assess.
2 :
If you can reproduce the pain by pushing on an area of your chest, this is probably muscular in origin and you can take pain medication for this (tylenol or ibuprofen). If you are over 40, the rest of the symptoms should be evaluated by a doctor



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Friday, January 4, 2013

African American have higher rates of hypertension,heart disease and stroke than whites in the U.S is this dif

African American have higher rates of hypertension,heart disease and stroke than whites in the U.S is this dif?
Is this difference likely to be biological? How could you test your hypothesis?
Anthropology - 4 Answers
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1 :
Living standards, social class, food intake where they are buying their food and if they can afford to eat like white people can. A vast majority of blacks solely depend on food stamps and thus they need high starch foods because well it's cheaper. And eating a lot of fried foods like chicken wings is crazy.
2 :
By far the majority of slaves imported to the Americas came from West Africa. While it appears that African Americans have a higher rate of hypertension than do West Africans in general, some biological evidence exists to suggest genetics is at play. Diet plays some role & it is uncertain if West Africans would display the same amount of hypertension as Americans, given the same diet. The methods of testing this would be to test West Africans living on a typical African diet & those living on a Western Diet. Some suspect that only those living on a high salt diet & having a general propensity toward hypertension survived the Atlantic crossing. One would be required to have several control groups: 1) West Africans on an African diet. 2) West Africans on a Western diet. 3) African Americans on an African diet. 4) African Americans on a Western diet.
3 :
A large portion of the standard American diet (SAD) includes excess animal protein in the form of meat, eggs, and dairy. Over 75% of African Americans and Hispanics have some form of allergy or intolerance to dairy, however, milk and dairy continue to be recommended through industry influenced media and government agencies. Diet is the #1 contributing factor when it comes to heart disease, hypertension, and stroke, along with other diseases of affluence such as diabetes, cancers, and osteoporosis. The SAD with excess animal proteins and unhealthy processed ingredients, additives, colorings, preservatives, sugar, fat, and salt have been shown to be correlated with high blood pressure and coronary disease. This is documented through research led by Dr. T. Colin Campbell, Dr. Neal Barnard, and many others. The scientific research showing this relationship start in the late 1800's. These diseases of affluence are primarily lifestyle related and have a weaker but statistically significant genetic basis. To determine whether the difference in populations is biological (genetic), you would need to control other variables that have an influence on the rates of heart disease, stroke, and hypertension. These include: + Sleep. + Exercise. + Smoking. + SAD versus vegetarian (animal protein consumption). + Alcohol consumption. + Drug (legal and illegal) consumption. There is clearly a genetic predisposition toward these diseases, however, the lifestyle factors above represent a greater threat to a person's health than genetic predisposition (contrary to the consensus reality promoted by industry influenced institutions). You need to define your population. A good model for this is "The China Study" by T. Colin Campbell, professor emeritus from Cornell. His study was of a heterogeneous populations from rural China. If you are able to establish a random sample of people, say in the more homogeneous US in your local region, you might be able to take a random sample of say 100 blacks and 100 whites. Before you start, you must state your hypothesis such as: Null Hypothesis: There is no difference in 'diseases of affluence' between blacks and whites when lifestyles are similar. Research Hypothesis: Blacks experience more 'diseases of affluence' then whites when lifestyles are similar. You would need to segment the population in such a way that comparison between each group has similar lifestyles. A vegetarian black population should be compared to a vegetarian white population with similar lifestyle. A SAD black population should be compared to a white SAD population with similar lifestyles. Your definition of terms and means to classify subjects should be determined ahead of time. Also, your conclusions are probably valid for the local population only. You might find that the differences are due to lifestyle differences, such as a greater percentage of whites who are 100% vegetarian. Your research should account for this possibility. Note that you might find that genetics account for a small, but statistically significant difference, like 3%, where as a lifestyle difference accounts for more like 60% of the difference. Drugs that are only mildly effective (3-5%) can be statistically significant and thereby approved by the FDA in America. Doctors should be prescribing lifestyle changes rather than drug treatment plans. It's more common in America for your physician to get out the prescription plan if you have high blood pressure. My point is, so what if there is a genetic difference. A lifestyle change swamps any small effect of genetics. Sadly, in America, drug researchers for drug companies tend to ignore the comparison to lifestyle changes so as to promote a drug that can earn a company billions of dollars annually. Sadly, the FDA and other agencies are asleep at the wheel.
4 :
African Americans are descended from groups that lived inland and had evolved to retain sodium, since they had little or no access to seafood as a source of salt. Living in the US on the modern high salt diet, they now have this protective sodium retention mechanism working against them. They would probably have to try to avoid almost all salt in order to live as their ancestors did


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Tuesday, January 1, 2013

I am doing a research paper on heart disease for statistics

I am doing a research paper on heart disease for statistics. ?
I need to come up with a good dependent and independent variable. I am going to compare several communities in my paper. I was thinking a dependent variable could be race, income level, lifestyle, location. Any suggestions? or change my topic?
Other - Education - 2 Answers
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1 :
I don't think you understand correctly what independent/dependent means here. Independent (x) is what does not vary as a result of something else but rather on its own, and dependent (y) is what varies as a result of x, or y=f(x). So things like race, income level, location, gender, age, and ethnicity would most likely be INDEPENDENT variables. And for the dependent one being heart disease, you could formulate hypotheses relating the risk of heart disease to each of the independent variables I listed. Keep in mind you'd next have to either conduct experiments to confirm/dispute your hypotheses or look up data on the exact same theories, as they're called in studies, in journals such as JAMA (Journal of the American Medical Association) or at AHA's website (American Heart Association). As for lifestyle, that varies and can actually be a dependent variable, so unless you simplify that to TYPE of lifestyle like active, less active, rarely active, or sedentary, it wouldn't work here- too complex to analyze this way. You can also do lifestyle based solely on diet type- Mediterranean, Chinese, Indian, junk food, healthy diet, vegan, vegettarian, low carb, low cal, low fat, etc. Hope this helps.
2 :
The independent variable needs to have a causal effect on the dependent variable. Here the variables you list as candidates for the dependent variable look more like independent variables to me. If your paper is on heart disease and your unit of analysis is communities, your dependent variable needs to be something about heart disease that varies across communities. It could be the proportion of people living in the community with heart disease, it could be the number of ambulance runs in a year for heart attacks. Just think of some variable that serves as an indicator or proxy for heart disease at the community level. Once you have that, think about the factors that you believe influence the dependent variable that you chose. Remember, since you are studying communities, that set of independent variables needs to be community-level variables. It could be the proportion of people in the community who smoke, or who drink coffee, or who don't exercise, or whatever makes sense in your field. Good luck.



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