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Arthritis Risk for Middle-Aged Exercise Addicts

Can exercise be too much of a good thing?

Middle-aged men and women may be risking arthritis if they overdo their exercise regime, research suggests. A US study of more than 200 people aged 45 to 55 and of "normal" weight found those doing the most exercise were the most likely to suffer knee damage.

Running and jumping may also do more damage to cartilage and ligaments than swimming and cycling, researchers said. One arthritis charity said it was important to keep fit and most people would not have any problems.

Osteoarthritis - the most common form of arthritis - is a degenerative joint disease that causes pain, swelling and stiffness and affects millions of people Worldwide.

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Morphine Might Help Spread Cancer

Laboratory tests suggest morphine could in fact encourage the spread of cancer, for which it is routinely prescribed to relieve pain from surgery and tumors.

US scientists say the opiate promotes the growth of new blood vessels which deliver tumors oxygen and nutrients.

Speaking at a meeting of the American Association for Cancer Research in Boston, they also claim to have found a drug which counters this effect.

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Alcohol May Protect Men's Hearts

Drinking alcohol every day cuts the risk of heart disease in men by more than a third, a major study suggests. The Spanish research involving more than 15,500 men and 26,000 women found large quantities of alcohol could be even more beneficial for men.

Female drinkers did not benefit to the same extent, the study in Heart found.

Experts are critical, warning heavy drinking can increase the risk of other diseases, with alcohol responsible for 1.8 million deaths globally per year.
The study was conducted in Spain, a country with relatively high rates of alcohol consumption and low rates of coronary heart disease.

The research involved men and women aged between 29 and 69, who were asked to document their lifetime drinking habits and followed for 10 years.

I'll be right back, I have to walk to the fridge.

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Ketamine is a painkiller used in operations on people and animals. There has been a rise in the number of young people taking the Class C drug ketamine.

Increased use was found in nine out of 20 studied areas in the UK. Ketamine was made illegal three years ago after a surge in the number of people using it as a recreational drug. It is legal in low doses for medicinal use as an anesthetic and a horse tranquilizer.

Also known as K, Special K and Vitamin K, the drug has a strong following on the dance scene. Usually it is snorted or swallowed but more people were injecting it in an attempt to experience stronger hallucinations, which increases the risk of infection from dirty needles.

At low doses the user may feel euphoric, experience waves of energy, and possibly synaesthesia - sensations such as seeing sounds or hearing colors. At higher doses the user might become paralysed, experience hallucinations and alternate realities, and a feeling of disassociation giving an out-of-body experience known as the "K-hole".

Ketamine was linked to the deaths of 23 people between 1993 and 2006. Most had accidents after taking the drug.

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Noise Worse for Dyslexic Pupils

Children with dyslexia find it harder to hear in noisy classrooms than those without the condition, a US study says. Pupils with poor reading skills were also more likely to struggle to retain information when there was background noise, researchers reported in Neuron.

They said the findings, based on tests on 30 children, might help to develop new ways to diagnose the condition. The team from Northwestern University, in Chicago, said pupils with dyslexia might also need extra support in class. They said placing children with dyslexia in front of the teacher could make a big difference.

And they suggested other steps, such as providing such pupils with wireless technologies and noise-reducing headphones to pick up information better.

Dyslexia is a neurological disorder which affects reading and spelling skills in between 5% to 10% of children.

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Today's Cool Image is of a Normal Kidney micrograph. The magnification is x100.

This is a perfect visual representation of healthy kidney tissue. This image could be used to help illustrate diabetes in a positive way.

This image has been enhanced and colorized and is part of CMSP's 100,000 image library.

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November 11, 2009

Veterans Day is an annual American holiday honoring military veterans. A federal holiday, it is usually observed on November 11.

It is also celebrated as Armistice Day or Remembrance Day in other parts of the world, falling on November 11, the anniversary of the signing of the Armistice that ended World War I.

Why is Veterans Day on November 11? Because major hostilities of World War I were formally ended at the 11th hour of the 11th day of the 11th month of 1918 with the German signing of the Armistice.

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While in the hospital, a patient may be prescribed several medications. Gloves are worn by nurses and other healthcare workers due to Sepsis and other pathogens.

In the United States, sepsis is the second-leading cause of death in non-coronary ICU patients, and the tenth-most-common cause of death overall according to data from the Centers for Disease Control and Prevention (the first being multiple organ dysfunction syndrome).

Sepsis is common and also more dangerous in elderly, immunocompromised, and critically-ill patients. It occurs in 1–2% of all hospitalizations and accounts for as much as 25% of intensive-care unit (ICU) bed utilization. It is a major cause of death in intensive-care units worldwide, with mortality rates that range from 20% for sepsis to 40% for severe sepsis to >60% for septic shock.

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Swine flu, the Virus

Influenza is caused by infection with a virus. There are many types of flu virus and these are constantly changing, which makes it hard for the human immune system to deal with. The particular type of influenza virus that causes swine flu is known as H1N1, which is a type of Influenza A (there are also influenza B and C viruses).

It is the same group of H1N1 viruses which cause the regular yearly flu outbreaks in humans, but swine flu is caused by different strains of H1N1. The 2009 strain of swine flu, now known as novel influenza A (H1N1), has not previously been found in pigs or humans, and contains a mixture of genetic material from human, pig and bird flu. In other words it is a new variety of flu which people are therefore unlikely to have much immunity to.

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The hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis).

The hypothalamus is located below the thalamus, just above the brain stem. In the terminology of neuroanatomy, it forms the ventral part of the diencephalon. All vertebrate brains contain a hypothalamus. In humans, it is roughly the size of an almond.

The hypothalamus is responsible for certain metabolic processes and other activities of the Autonomic Nervous System. It synthesizes and secretes neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, and circadian cycles.

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Your Diet Can Cause Depression

Eating a diet high in processed food increases the risk of depression, research suggests. People who ate plenty of vegetables, fruit and fish actually had a lower risk of depression, the University College London team found. The team said the study was the first to look at the UK diet and depression.

They split the participants into two types of diet - those who ate a diet largely based on whole foods, which includes lots of fruit, vegetables and fish, and those who ate mainly processed food, such as sweetened desserts, fried food, processed meat, refined grains and high-fat dairy products.

After accounting for factors such as gender, age, education, physical activity, smoking habits and chronic diseases, they found a significant difference in future depression risk with the different diets.

Those who ate the most whole foods had a 26% lower risk of future depression than those who at the least whole foods.

By contrast people with a diet high in processed food had a 58% higher risk of depression than those who ate very few processed foods.

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