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Rich in potassium, the potato can become a precious ally lasting the summer. It can fill the loss of this nutrient that one undergoes when the heat or the practice of physical activity has made us perspire.

Potassium assures several vital functions in the organism:

He / it acts in narrow collaboration with sodium to maintain the acid-basic balance of the body and the one of the fluids.
He / it intervenes in the contraction of the heart and muscles.
He / it contributes to the good working of the nervous system.
He / it helps towards the maintenance of the arterial pressure.
He / it facilitates the digestion.
How to get the maximum of potassium of the potato

Some researchers tempted to determine what is the best way to prepare the potato in order to lose the less possible potassium during cooking. According to their Results1, it is more the way one of which cuts or prepare the potatoes that the fashion of cooking that influences the concentration of potassium in the tuber, once in the plate.

Having studied six types of cultivated potatoes in North America, the researchers discovered that while cutting the potato in small cubes, one of 50% reduces the availability of potassium. And if these small cubes are soaked in water before cooking, this reduction reaches 75%.

It is why they recommend to make boil the potatoes, either whole, is cut in big pieces.

According to nutritionist Helen Baribeau, the adults need a daily contribution of 4.7 g in potassium.

"The best way to get the maximum of this essential mineral with the potato is to cook it at the oven with the peel, specify Helen Baribeau. One loses a little potassium if one peels it, but the concentration stays good."

On the other hand, she / it advises against French fries since they lose more potassium during cooking, in addition to contain a lot of saturated greasiness.

Other food sources of potassium

   Cooked beans (white, of soy, of Lima, pinto, red, navy), lentils and split pea Leaves of beets mushes Clams canned tomatoes in mash, canned fish (halibut, tuna to yellow flukes, of the Atlantic cod) Bananas

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The exhibition to light and the hold of melatonin supplements could improve the mood and the sleep of the aged people affected by craziness, in addition to slow down the cognitive decline, sustains a survey néerlandaise1.

The results of the survey are however modest. But, the effect on the reduction of the cognitive decline would be comparable to the one of a medicine. anticholinestérasique year - managed often to the people who suffer from craziness, advance the researchers.

The clinical test that lasted 15 months on average, has been led by resident of 189 homes for aged people of which 87% suffered from craziness.

At the time of the survey, the topics were exposed, during the day, to a luminous intensity of about 1 000 lux (active treatment) or 300 lux (group witness). Lights destined to the active treatment have been installed in the common room of the residences. The participants also received 2.5 mg of melatonin in evening, or an identical placebo.

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The Dr David Servan-Schreiber and 19 scientists emitted some recommendations on the use of the cellular telephone.

Their message is simple: in the absence of definitive findings proving the innocuous character of the cellular for the long-term health (more than 10 years), it is important to adopt measures of precaution as for his / her / its use.

Here are their ten recommendations:

Not to allow the children of less than 12 years to use a cell phone, except in case of emergency.
As much that possible, to maintain the telephone to more of one meter of the body during the communications while using the fashion loudspeaker, a device "free hands" or an auricle.

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The practice of the tai chi could be an efficient and little expensive solution for the aged people up against the unrest of sleep. It is what the authors of a clinical test led in California by 112 people of 60 years to 86 years enduring think insomnia or being sleepy.

The topics participated, during 25 weeks, either to sessions of tai-chi chih2, a westernized shape of the tai-chi, either to courses on the management of stress, the food and the unrest of the sleep.

According to the results, close to the two third of the topics of the group tai chi chih noted an improvement of the quality of their sleep compared to a third of the participants of the group witness.

The results bound to the relief of the symptoms of the disorder of the sleep by the tai chi chih would be comparable to those usually gotten by the pharmacological treatment, the researchers note.

The unrest of the sleep touch 58% of people aged of more than 59 years and 85% of the cases are not treated, underline the authors of the survey.

The deprivation of sleep would have the effect of contributing to the starting point of notably inflammatory processes associated to the cardiovascular unrest, to the to the arthritis and diabetes, according to other results published lately by the main author of this survey, Michael R. Irwin.

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The men who have a sufficient contribution in vitamin D would run half less risk to undergo a fatal heart attack or no, compared to those that present a deficiency, return an American survey of the Harvard1 university.

These results, gotten by 1 350 men followed during ten years, militate in favor of a revision to the rise of the daily contribution in vitamin D advisable in the Nordic countries.

Among the participants, 454 men underwent a heart attack, 102 of which were deadly. These men were more numerous to smoke, to be sedentary and to make the plumpness.

However, after having isolated these factors of risk, he / it seems that the effect of a deficiency in vitamin D should also be taken in consideration. The participants who had an insufficient blood rate in vitamin D (15 nanograms by milliliter or less) were 2.4 times more to risk to undergo a coronary thrombosis - fatal or no. that those of which the rate of blood was sufficient vitamin D (30 ng / ml).

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Two Scandinavian studies arrive to the same conclusion: to consume the alcohol moderately could decrease the risk to suffer from rheumatoid arthritis and to smoke would have the opposite effect.

Some Swedish researchers analyzed the data of the two clinical tests in Sweden and led to Denmark. To the total, 1 648 people affected by rheumatoid arthritis and 1 404 topics that did not stand some answered a questionnaire on their habits of life and provided a sample of blood.

According to the results, the topics that consumed the equivalent of five glasses of wine and more per week ran from 40% to 50% less risk to be reached of rheumatoid arthritis compared to the topics that the less drank alcohol.

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