Heart Attack Causes, Symptoms And Signs
The blood supply to the heart is usually stopped by a blood clot in the coronary arteries, causing the heart attack. The arteries are narrowed in places due to 'plaques' - a build-up of the fatty substance cholesterol over many years.
Arthritis Medical Advice And Types Of Arthritis
In order to have an understanding of the two major types of arthritis, it is essential to know a little about the function and appearance of a joint. A joint is designed to allow smooth movement of two bones, one against the other.
What Causes Diabetes And Types Of Diabetes
A healthy diet, regular exercise, and culturally sensitive care may be helpful in preventing and controlling diabetes, say researchers. The findings are based on recent reviews that suggest that a healthy diet and exercise can help prevent diabetes, and that patients from ethnic minorities do better with diabetes education that takes their language and culture into account.
What Is Tonsilitis
Tonsillitis is an infection of the tonsils, caused by either bacteria or viruses. Tonsils are groups of tissue, similar to the lymph nodes or 'glands' that circle the throat. This circle of tissue is part of a ring of glandular tissue around the throat called Waldeyer's ring, and the tonsils are found on either side of the back of the throat.
Uterine fibroids can cause infertility by presenting as a space occupying lesion; by contiguous enlargement and subsequent blockade of the tubes, by formation of adhesions, by exhibiting heavy menstrual flow causing symptomatic anemia and causing irregularities of menstruation and hormonal imbalance, and by causing discomfort and pain during intercourse.
The focus in the fight to tackle obesity tends to be diet and exercise. But what about sleep?
In this week’s Scrubbing Up, Dr Neil Stanley argues getting a good night’s rest is just as important.
It is an undeniable fact that we have a problem with obesity in the UK. The government and the NHS rightly believe that for the health of the nation, levels of obesity need to be reduced.
So we have campaigns based on eating less and more healthily, such as “5-a-day” and exercise – “10,000 steps a day” and the “Change for Life” initiative.
However, given recent reports, these efforts, whilst very well-meaning, are seemingly having absolutely no effect on reducing levels of obesity or increasing rates of exercising.
What Is Pneumonia?
Pneumonia causes inflammation of one or both lungs in the chest, usually due to infection. It causes disruption of the normal process of gas exchange, where oxygen is taken into the body and the waste product carbon dioxide removed.
This causes interruption of oxygen supply to the tissues which is potentially fatal, but thanks to modern antibiotics, many people, young and old, now make a good recovery. However, it’s still a common cause of death among those who are seriously ill.
Symptoms Of Pneumonia Read the rest of this entry »
What Is Japanese Encephalitis?
Japanese encephalitis is a viral disease spread by mosquitoes, which transfer the virus from infected animals – usually pigs and wading birds – to humans. Areas such as rice fields, where mosquitoes thrive and there is a lot of pig farming, are especially risky.
It was first recognised in Japan in the late 1800s (hence the name) and has since been found throughout most countries of east and South East Asia where it is the leading cause of viral encephalitis. Approximately 30,000 to 50,000 cases are reported every year, and there are about 10,000 deaths, mostly in children. In fact it’s now thought that many more people have the infection (research shows that by the age of 15 most people in South East Asia have had it) but symptoms are usually minimal so it doesn’t get reported.
Causes And Risk Factors Read the rest of this entry »
Schizophrenia is a disorder which affects thinking, feeling and behaviour. It usually starts between the ages of 15 to 35 and affects about one in every 100 people during their lifetime.
Causes Of Schizophrenia
The causes of schizophrenia aren’t known for sure. It’s likely that several different factors, a combination of which will vary from person to person, may have an affect. These include:
Genetic links – one in ten people with schizophrenia has a parent with the condition. Damage to the brain during pregnancy or birth. Use of recreational drugs, including ecstasy, LSD, amphetamines (speed), cannabis and crack. Stress.
What is migraine?
Migraine is a severe headache, usually on one side, often accompanied by nausea and vomiting and associated with finding light or sound painful (photophobia and phonophobia). There are two types:
Migraine with aura (classical) – the headache is preceded by a preliminary phase called an aura, when symptoms such as seeing flashing lights, temporary visual loss, speech problems or numbness of the face or arms may occur.
Migraine without aura (common) – no aura precedes the headacheTop Symptoms of migraine.
Causes Of Alzheimer’s Disease
The exact cause of Alzheimer’s disease isn’t known, although some risk factors are known. The risk of developing the disease increases with age, for example.
There’s a higher risk of Alzheimer’s if a family member has the disease. However, inherited genetic factors are responsible in only a small number of families.
When the disease is inherited, it tends to lead to early onset of Alzheimer’s, usually between the ages of 35 and 60. One of several different genes may be at fault, such as the presenilin-1 gene on chromosome 14 or the amyloid precursor protein gene on chromosome 21.
Most cases of Alzheimer’s develop later in life and the genetic link is weaker. The genes at fault here are those for apolipoprotein E. Problems with these genes increase the risk of disease but don’t make it certain – other factors are involved.
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What Is Single-Sided Deafness?
SSD, or unilateral hearing loss, refers to total hearing loss in one ear – the other ear can have perfect hearing.
There are thought to be at least 9,000 new cases of SSD in the UK each year. With the most common causes the onset of deafness is sudden. For many people, SSD has a particularly disabling and debilitating impact on work, home and social interaction. Despite this and the availability of effective treatment options, many patients don’t seek treatments owing to a lack of general awareness of this condition.
Causes and risk factors of single-sided deafness
SSD occurs when sounds cannot reach the working inner ear (cochlea), or when sounds reach the inner ear perfectly, but due to inner ear damage aren’t turned in to nerve impulses which are sent to the brain.
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What Is Smoke Inhalation?
The three major problems associated with inhaling smoke during a fire are:
Heat damage to the tissues of the respiratory tract.Asphyxiation (when the body fails to get sufficient supplies of oxygen to the tissues. Inhaling smoke blocks the intake of oxygen in the lungs, and boosts levels of the gas carbon monoxide which interferes with the ability of the blood to carry oxygen).
Inhalation of smoke particles and chemicals such as carbon monoxide and cyanide causing direct irritation of the lung tissues. Heat damage is usually limited to the tissues of the mouth and upper throat.
Fortunately, smoke cools rapidly once it is inhaled. Animal experiments have shown that if air at 142C is inhaled it has cooled down to 38C by the time it has reached the chest.
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