Friday, September 3, 2010

Cholesterol – Bad vs Good

December 19, 2009 by Dave Oliver  
Filed under fitness

What is this cholesterol mystery? Cholesterol is a substance stored in our fat/lipid content in the blood stream. It is important that we have a certain level of good cholesterol in our system. The cholesterol and other body fats can’t dissolve in the blood stream. They are transported through lipoproteins. There are many kinds of lipoproteins, but the two most important are HDL (high density lipoproteins) and LDL (low density lipoproteins). A third type known as Lp(a) is also common, and is responsible for increasing a risk of heart attack or stroke.

HDL is known as good cholesterol. This form of good cholesterol is moved from the arteries then to the liver, which is where is broken down and sent out of the body naturally. The HDL levels lower the risks of heart attack and stroke. It’s important to know that if levels gets too low, it may be a warning sign of a higher risk of heart attack. Levels that are low are -40mg/dL for men, and -50mg d/L in women. HDL seems to remove excess cholesterol from plaque found on blood vessels. This inhibits the growth of plaque. Approximately – 1/3 of our cholesterol is carried in HDL.

LDL is the primary carrier of cholesterol in the bloodstream system. Buildup on arterial walls can occur is there is too much LDL. This is what forms plaque on the wall when mixed with the body’s other substances. This plaque is a hard thick coat which clogs the arteries and slows the blood flow to the heart and brain. This can ultimately form a clot near the plaque. Once a clot forms, if near the heart, chances of a heart attack increase significantly. Those arteries that go to the brain increase the risk of strokes. LDL levels that measure 160 mg/dL or higher are one of the indicators of heart disease risks. Patients already diagnosed have a recommended stress level less than 100mg/dL.

Although not known widely by the general population, lipoproteins can also cause a greater risk are the Lp)a) cholesterol. This generic variation of a plasma, which is the fluid carrying the blood cells through the bloodstream is LDL. When these levels are higher, plaque can buildup quickly, referred to by physicians and specialist as “arthersclerosis”. Even though there is no conclusive evidence about why Lp)a) contributes to a higher risk of heart disease, the common belief is the natural lesion that occur may contain different substances, which leads to the build up of fat deposits.

Where Do We Get Cholesterol? The general consensus is that the human body is capable of producing the cholesterol that one needs to remain healthy. The body – most especially the liver – produces roughly 1,000 mg per day. Therefore the cholesterol consumed (by the average person eating the typical foods such as whole milk dairy products, eggs, meat, poultry, fish and seafood) is not really necessary to maintain the healthy level which one needs.

So how do you control your cholesterol intake? Dietary changes, such as decreasing the amount of meat and other fats, is one step. The maximum recommended amount of meat – including beef, fish and poultry, is less than 6 oz/day – about the size of a deck of cards. Consume other sources of protein, such as with beans and vegetables, to keep your body healthy.

It is also recommended that one adopt a regular exercise regimen. Even a moderate amount of daily activity can help to increase the movement of blood through one’s body. Physical activities such as leisurely walking, gardening, light yard work, housework and slow dancing are often prescribed as ideally suited for those who need a daily routine to help control the cholesterol levels. A more intense regimen can include brisk walking, jogging, swimming and weight-lifting. Aerobic exercising is an excellent way to increase one’s breathing and heart rates. Side benefits of a regularly scheduled exercise program can include weight control, reducing one’s risk of developing diabetes, and helping to keep one’s blood pressure at a healthy level. Regular moderate to intense exercise can also help to strengthen one’s heart and lungs.

Smoking is not recommended for anyone, but is especially bad for those at risk of heart disease. Smoking tobacco products decreases the body’s ability to get air, which decreases vascular circulation. It will also increase your risk or heart disease, and affect HDL good cholesterol while increasing the risk of blood clots as well as cancer. Smoking offers no health benefits and actually increases risks. If you are having trouble controlling cholesterol levels, you need to consult with your doctor. Any exercise program or dietary changes can be monitored through your physician and your bad cholesterol levels can be monitored for changes. There are ways to get good cholesterol readings, even if you have been struggling with the program. Only your doctor can give you accurate advice on what your cholesterol levels are, but with the right information he can help you find a program that will help you.

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