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Contact lenses manufactured from silicone hydrogel represent the most important advance in soft contact lens technology in recent years. Wearers would obviouly prefer lenses they can sleep in with total safety, so it was only a matter of time before the industry developed a safe product for continuous wear. After years of ongoing development and testing, such lenses are now readily available for everone to wear at an affordable price. This article looks at what’s so special about silicone hydrog... |
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935 words |
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22 Jan 2006 |
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Developments in the field of contact lens technology are producing ever better contact lenses that are increasingly convenient to wear throughout the whole gamut of vision conditions and lifestyles. Bifocal contact lenses are today available to correct presbyopia, a common problem in the over-40 age group.
Presbyopia is a vision condition in which they eyes are not able to focus clearly on near objects. It usually begins after the age of about forty when the lenses in the eye start reducing ... |
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817 words |
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22 Jan 2006 |
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By hypothyroidism, the thyroid gland is producing too less hormones to stimulate the metabolism, or the body is not able to utilize the hormones. The lack of thyroid hormones slows down the metabolism and thus all the activities in the body, giving a combination of many symptoms related to slowness of bodily processes.
Hypothyroidism is common, but the frequency of the condition is not well determined. Some authorities estimate that 0.5% of the total American population have the disease to ... |
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1165 words |
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23 Jan 2006 |
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Factors leading to and Increase in Cholesterol
Poor eating habits
Diet that is high in saturated fat tends to elevate cholesterol. Saturated fats are found mostly in foods that come from animals. Saturated fat raises you LDL (“bad”) cholesterol level more that anything else in the diet. Eating too much saturated fat is the main reason for high levels of cholesterol and high rate of heart attacks.
Smoking
Cigarette smoking lowers HDL (“good”) cholesterol levels and is one of the six major... |
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449 words |
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7 Feb 2006 |
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Salt (sodium) plays an important role in the regulation of muscle contraction, fluid balance and nerve impulses in the human body and it is essential for overall good health. All our body fluids including blood, sweat, tears, etc contain sodium. It is essential to maintain proper balance of sodium in these fluids. Sodium in the body is mainly found in fluids that surround the body’s cells, such as blood and lymph fluid. When sodium intake exceeds the amount the body can handle it builds up in th... |
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481 words |
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7 Feb 2006 |
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When the doctor recommends a coronary angiogram to someone close to you, the initial reaction is denial and non acceptance. Some people also believe that anyone who undergoes this test would invariably have to go through bypass surgery. Others believe that it will be painful, requiring prolonged hospital admission. But the truth is that it is a simple X-ray of the heart blood vessels, virtually painless and requires a short stay. Coronary angiogram is one of the most accurate tests in the diagno... |
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459 words |
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8 Feb 2006 |
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There’s more to keeping you pearly whites precisely that than a bit of brushing and the odd visit to a dentist. Take a look at these dental dos and don’ts.
#1 Avoid Fizzy Drinks
Carbonated drinks (including the diet variety and sparkling water) can cause your teeth to look older than they really are. These drinks are so highly acidic that they can actually dissolve the upper layers of the tooth. They contain high amounts of phosphorus - a mineral that can leach calcium from your bones if you... |
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513 words |
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8 Feb 2006 |
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Peanuts could lead you breathless, a bowl of pulses may cause swelling of the tongue and throat, or a fish preparation may lead to redness of skin and an incessant rash. The list is endless, and these are just a handful of the common allergies that people suffer from. While their occurrence may be common, what really makes the task difficult is that there is no cure for an allergy, and the only way out is by preventing the intake of food that causes allergy.
Simply defined, an allergy is into... |
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476 words |
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9 Feb 2006 |
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Syncope is a common disorder of temporary loss of consciousness and posture, described as ‘fainting’ or ‘passing out.’ It’s usually related to temporary insufficient blood flow to the brain and annually affects six per cent of elderly persons and accounts for 3 per cent of emergency department visits. Syncope is an important heart problem, is disabling, costly, may cause grievous injury or may be the only initial sign before the sudden cardiac death. Evaluating cause of syncope is difficult as b... |
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516 words |
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16 Feb 2006 |
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Suffer From Chronic Pain
Each year tens of millions of Americans suffer from persistent pain known as chronic pain. Individuals with chronic pain are less able to function in daily life than those who do not suffer from chronic pain.
Chronic pain patients suffer from poor sleep quality and depressed mood rather than pain intensity, duration, or anxiety. Clinical Implications Chronic pain patients suffer from poorer quality of sleep than do healthy control subjects. Many people suffer ch... |
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843 words |
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17 Feb 2006 |
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