Tag Archives: Mice

Man-flu: fact or fiction? The Real Truth.

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by registered dietician Nigel Denby

Medical Tests say that very high does of Vitamin C are best avoided as they can cause stomach upsets and kidney stones.

Is there really a strain of flu to which men are more vulnerable? Or, is ‘man-flu’ simply about blokes being less able to tolerate the symptoms of the common cold?

It’s long been a subject of debate, but partners of man-flu sufferers will doubtless be familiar with the inability to cope and function when the dreaded lurgy strikes.

The scientific community is as unsure about the validity of man-flu as the rest of us. In 2009, a study claimed to prove beyond doubt that man-flu was a real phenomenon. However, after closer analysis, it was criticised as being irrelevant because the researchers were looking at mice not humans, and bacterial infections rather than the viral infections which cause flu.

Other researchers from Cambridge University suggested in 2010 that flu symptoms could be more common and virulent in men than women because of a reduced male immune system. This theory was backed up by another study from the University of Queensland which in 2011 reported that in order to ensure the survival of the species, women’s immune systems were more robust than men’s, making men more susceptible to flu. However, despite these theories, according to the Office for National Statistics, women take twice as many sick days than men. So, the jury is clearly still out.

With winter fast approaching, man-flu, or indeed any other type, is on the horizon. So what can you do to prevent it or speed up recovery if you’re unlucky enough to be struck down?

COLDS versus
Comes on gradually
Sneezing, blocked up nose
Mild temperature changes
Lasts up to a week
3-4 day recovery period
Does not lead to serious complications

FLU
Strikes suddenly
Impossible to get out of bed
Fevers, chills, aching muscles, fatigue, headaches, sore throat
Can last for up to 10 days
2-3 week recovery period
Can lead to bronchitis or pneumonia

The power of the immune system Flu and colds are caused by viruses. This means antibiotics are ineffective when it comes to treating them. A strong immune system is the cornerstone of warding off viral infections and the best ways to keep this in tip top condition are:
Feed it the nutrients it needs

Support the immune system year round with probiotics like Actimel, targeting the body’s natural defences

Limit undue strain on the immune system from stress, late nights, smoking, excessive alcohol and poor hygiene

Nutrition
Garlic contains allicin which is believed to boost immunity

Omega-3 fatty acids from oily fish and flax seeds helps cells in the respiratory system fight infection

Vitamin A is found in yellow and orange vegetables like sweet potatoes, peppers and carrots
Lean meats and particularly offal like liver or kidneys contain nucleotides needed for the repair of cells and for the production of immune cells

Zinc found in shell fish and whole grain cereals is needed for a robust immune system
Support

Your digestive system plays a vital role in your body’s natural defences. Up to 70% of your immune system is thought to be controlled by the gut and the balance of good and bad bacteria in the gut is an important factor for immunity

A daily probiotic, designed to support your body’s natural defences is an easy, effective way to stay in tip top condition throughout the winter

Poor personal hygiene means your immune system is bombarded with harmful germs, bacteria and viruses, and less able to fight off cold and flu viruses when they come along

Hand washing is one of the most effective ways to reduce the number of attacks on your immune system, especially after using the bathroom, coughing, sneezing and before and after preparing food

Speeding up recovery

No matter how well you look after your immune system, you’re
likely to pick up a cold or flu. Here are some tips for getting rid of
a cold sooner:

Garlic is a proven antibacterial and decongestant, add
garlic to soups, pasta sauces and casseroles

Thyme and eucalyptus oils may help to clear congestion,
add drops to boiling water and inhale

Ginger and chilies are stimulating spices which can act as
decongestants

Echinacea is thought to stimulate the immune system

Zinc lozenges may also help to halt a cold, possibly by
destroying the virus

Photo by Sarihuella

Too Much Light At Night May Lead to Obesity {Health}

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Research by the Ohio State University has found that persistent exposure to light at night may lead to weight gain, even without changing physical activity or eating more food.

By studying mice the researchers found that mice exposed to a relatively dim light at night over eight weeks had a body mass gain that was about 50 percent more than other mice that lived in a standard light-dark cycle.

“Although there were no differences in activity levels or daily consumption of food, the mice that lived with light at night were getting fatter than the others,” said Laura Fonken, lead author of the study and a doctoral student in neuroscience at Ohio State University.

The study appears this week in the online early edition of the Proceedings of the National Academy of Sciences.

As they’re not less active or eating more, the results suggest that the weight gain is because the mice living with light at night eat at times they normally wouldn’t.

In one study, mice exposed to light at night – but that had food availability restricted to normal eating times – gained no more weight than did mice in a normal light-dark cycle.

“Something about light at night was making the mice in our study want to eat at the wrong times to properly metabolize their food,” said Randy Nelson, co-author of the study and professor of neuroscience and psychology at Ohio State.

If these results are confirmed in humans, it would suggest that late-night eating might be a particular risk factor for obesity, Nelson said.

Mice exposed to dim light-at-night showed higher levels of epididymal fat, and impaired glucose tolerance – a marker of pre-diabetes.

“When we restricted their food intake to times when they would normally eat, we didn’t see the weight gain,” Fonken said about the mice. “This adds to the evidence that the timing of eating is critical to weight gain.”

So how does light at night lead to changes in metabolism? The researchers believe the light could disrupt levels of the hormone melatonin, which is involved in metabolism. In addition, it may disrupt the expression of clock genes, which help control when animals feed and when they are active.

Overall, the findings show another possible reason for the obesity epidemic in Western countries.

Researchers have long associated prolonged computer use and television viewing as obesity risk factors, but have focused on how they are associated with a lack of physical activity.

“It may be that people who use the computer and watch the TV a lot at night may be eating at the wrong times, disrupting their metabolism,” Nelson said. “Clearly, maintaining body weight requires keeping caloric intake low and physical activity high, but this environmental factor may explain why some people who maintain good energy balance still gain weight.”

The research was supported by the National Science Foundation and the U.S.-Israel Binational Science Foundation for the Ohio State University.