Fish Oil Health Benefits

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Posted by admin | Posted in Health Topics | Posted on 29-05-2011

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If you have been reading basic scientific literature, or if you have been watching advertisements on Internet sites recently, then you might have come across invitations to try fish oil.

Fish oil is not simply oil extracted from any fish. It is the deep ocean fish that are used to get omega-3 fatty acids, which come in the form of docosaheaenoic acid, or DHA, and eicosapentaenoic acid, or EPA. Many plant sources such as oil seeds can give the body omega-3 fatty acids, but these fatty acids have to be processed into DHA and EPA, a process that can be slow and difficult in some people who lack the necessary enzymes, or in the elderly.

Because DHA and EPA are already available in utilizable form in fish oil, this kind of oil can be useful for supporting the health of the body during many different ailments. Researchers are studying how EPA can help decrease your body’s often painful responses to certain allergens or stimuli. This inflammatory response can lead to arthritis or cyst formations; with a good dose of EPA, the body might be persuaded to ease its immune responses. This is why one of the fish oil health benefits is how it may help people with arthritis.

In general, fish oil has also been shown to promote cardiovascular health. Omega-3 fatty acids can lower cholesterol build up in arteries, which can clog them, and which can cause heart attacks. Omega-3 fatty acids can also lower the amounts of dangerous triglycerides; as well as low density lipoproteins or LDL, the so-called bad cholesterol. In effect, omega-3 fatty acids may help support lower blood pressure, which can be increased when some arteries or veins are heavily clogged with cholesterol. According to research, omega-3 fatty acids may also help to increase good cholesterol, or high density lipoproteins (HDL).

Because of its good effects on the cardiovascular system, fish oil fatty acids can help protect the body from potential heart attacks and strokes. Strokes are caused when a plaque of fat layers on artery walls breaks away and travels through the blood stream. This ball of plaque, referred to as an embolus, can clog arteries. Fish oil can help the body break up an embolus before it can cause problems.

Another one of the famous fish oil health benefits is how it also help support brain health. Adults might have a better memory, faster recall, better reasoning, and easier focus on the job at hand if they take fish oil. Omega-3 fatty acids have also been shown to decrease the incidence of depression and psychosis in some people, which was demonstrated at the University of Sheffield, where researchers found that one of the major fish oil health benefits was how it could ease the symptoms of some mental health problems.

Some childhood disorders, such as attention deficiency hyperactivity disorder, or ADHD, and attention deficit disorder, or ADD, have also been shown to benefit from the use of fish oil. Children suffering from obsessive compulsive disorders and dyslexia have also been reported to get better at basic skills due in part to the use of fish oil with DHA and EPA.

Fish oils are also anticoagulants, and can keep blood from clotting prematurely. Fish oils have also been found to protect the nervous system and improve the function of the immune system. Anecdotal evidence has also shown the effectiveness of using fish oil in reducing the risk of blindness brought by old age, osteoporosis, and even type II diabetes.

Before buying any fish oils, however, make sure that you read the product labels. Fish oil that has not been processed well may contain poisonous metals such as mercury, additives to preserve the fish oil, or lower levels of DHA due to extensive, but crude processing. Not all fish oils are bottled and stored well, so make sure that you buy a fresh bottle. Buy fish oil only from reputable merchants, and avoid looking for “bargains” by buying fish oil from unreliable sources.

Lastly, be updated on the latest research surrounding the use of fish oil for human health. There are many more studies still ongoing on how the ingredients present in fish oil can help us have better immune, cardiovascular, and nervous systems. As research continues, you need to learn more about fish oil health benefits that come from top quality, well-processed fish oil supplements.

Cholesterol Levels and Fitness

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Posted by admin | Posted in Fitness | Posted on 27-04-2009

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Cholesterol is an essential nutrient for human health that saves lives. It helps to protect against infectious disease and repairs damaged tissue. Cholesterol is naturally present in cell walls or membranes everywhere in the body, including the brain, nerves, muscles, skin, liver, intestines, and heart. Cholesterol is required in the membrane of mammalian cells for normal cellular function, and is either synthesized in the endoplasmic reticulum, or derived from the diet, in which case it is delivered by the bloodstream in low-density lipoproteins. Cholesterol can also be converted to vitamin D in our body and used for the calcification of bones and teeth.

The precise causes of a high level of blood cholesterol are very complex, with many genetic factors playing important roles. The causes which are now seen as contributing to higher-than-normal cholesterol levels are: hereditary factors, which are the most important; then high blood pressure; followed by stress, smoking, obesity and dietary cholesterol. Unfortunately, some individuals have very high cholesterol levels, and the cause is hereditary; about 25 people in 10,000 carry this trait. Some drugs that are known to increase cholesterol levels include anabolic steroids, beta blockers, epinephrine, oral contraceptives, and vitamin D.

Some studies have shown that fish oil supplementation may increase the level of LDL-cholesterol (the “bad” kind), but that the ratio of HDL-cholesterol (the “good” kind) to LDL remains unchanged. Another study found an average reduction of 38% in triglyceride levels and an increase of HDL levels of 24% in both men and women consuming fish on a daily basis. Healthy lifestyle changes such as losing excess weight and exercising regularly can help lower triglyceride levels.

Physical fitness is to the human body what fine tuning is to an engine. Physical fitness is the capacity of the heart, blood vessels, lungs, and muscles to function at optimum efficiency. In previous years, fitness was defined as the capacity to carry out the day’s activities without undue fatigue. Physical fitness is now defined as the body’s ability to function efficiently and effectively in work and leisure activities, to be healthy, to resist hypokinetic diseases, and to meet emergency situations. Whether exercise is aerobic or anaerobic, exercise, health, and physical fitness go together for life. Aerobic fitness reduces brain tissue loss in aging humans.

The decision to carry out a physical fitness program cannot be taken lightly. Unless you are convinced of the benefits of fitness and the risks of unfitness, you will not succeed. As you undertake your fitness program, it’s important to remember that fitness is an individual quality that varies from person to person. Your goals, your present fitness level, age, health, skills, interest and convenience are among the factors you should consider. Exercise that doesn’t raise your heart rate to a certain level and keep it there for 20 minutes won’t contribute significantly to cardiovascular fitness. The best-laid plans of many a fitness program have been ruined by too much enthusiasm on the first day and sore muscles on the second.

An aerobic exercise program can burn fat and increase the metabolic rate. Popular aerobic conditioning activities include brisk walking, jogging, swimming, cycling, rope-jumping, rowing, cross-country skiing, and some continuous action games like racquetball and handball. It is generally recommended that aerobic exercises be done three to five days per week, from twenty to sixty minutes of continuous activity at a time, such that the heart rate increases from 50 to 90 percent, depending on the intensity of the workout. Heart rate is widely accepted as a good method for measuring intensity during running, swimming, cycling and other aerobic activities.

In a nation of couch potatoes, suggesting that people find whatever kind of exercise works for them is sound health advice. Weight training exercise is essential for enhancing muscular strength and endurance, helping to prevent the decline of muscle mass (and metabolic rate) that accompanies aging, and promoting bone health.