Friday, 15 August 2014

Nutrition In Brain Performance

Before we get into the issue of how the nutrition food we eat affects our brain's function, it is important to consider two different aspects: the first refers to the mental capacity to perform intellectual more or less complex tasks - referred to as cognitive functions - which can be quantified and measured objectively.

The second aspect relates to the mental state in which an individual is at a given time (called mood). This sensation can vary rapidly and affect short term intellectual performance. Its measurement is subjective.

Numerous researches have shown that, usually, food is able to influence mood and cognitive functions. These effects are measured through adaptations of the habitual diet, consumption of functional foods and intake of nutritional supplements.

Causes causing the need to reestablish mental performance or mood may be short term (such as lack of sleep) or long term (such as depression). Nutrients must be adapted to these needs - and therefore also their way of acting - does it: some have effects that last long - such as glucose, while others must be administered for long periods - such as vitamins, minerals and essential fatty acids.

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Effects of diet

The availability of food and modern habits have some problems. One of the most obvious is that many people skip breakfast, something harmful, because after fasting all night, the deposits of glycogen (stores of glucose in the liver and muscles) are exhausted. If at first time does not eat something rich in carbohydrate, mood and intellectual performance will be altered during the morning. These effects are especially seen in children.

Nutrients For The Brain

To understand this point, it is necessary to know, first, that the brain is an organ which begins to develop at full speed a few weeks of conception. The process slows to half of pregnancy, but continues until well after birth.

In fact, infants not only continues to increase the number of brain cells, but that in addition, the brain suffers a process of remodeling: neurons and connections that have not been used and under sensory stimuli, establish new ones that originate complex networks disappear. This idea emphasizes the importance of early stimulation during the first years of life.

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However, it is necessary to take into account that intellectual performance is a product of brain function, which can be measured more or less objectively, but that always is quantified as a result.

Nutrition in the development of the child's nervous system. The nervous system of the fetus is very well protected from much of the deficiencies or nutritional excesses suffered by the mother during pregnancy. There are only a few exceptions, such as iodine deficiency, the abundance of vitamin A and folic acid deficiency.

However, after the birth and for a critical period of many months, the development of the nervous system of infant is vulnerable to a number of nutritional deficiencies (especially, protein, iodine and iron) and the excess of some nutrients (in particular, some amino acids).

Energy And Nutritional Needs

Children aged between 3 and 11 years of age need to ingest a day between 1,750 and 2,800 kilocalories. A balanced diet gives children everything they need to grow in a healthy way. Their nutritional needs vary depending on various factors, such as age, weight, the size, growth rate, physical exercise and eating habits.

So the children are healthy, maintain a normal growth and to meet their daily energy needs they need:

Proteins:

To develop the muscles. They found in dairy products, meat, fish, eggs and cereals. Protein needs must be based on the relationship between body weight, height and development. They are very high in infants, then decrease and soar again at puberty.

Carbohydrates:

They provide energy to the brain and muscles. They are cereals, potatoes, rice, pasta, fruit and sugar. There are two types of carbohydrates: complexes, such as those found in cereals; and the simple, like fruit and sugar. A healthy diet should have adequate amounts of both, but with a predominance of the complexes.
Dietary fiber:

It is in foods such as whole grains, legumes, vegetables, fruits and nuts. It is estimated that the diet should contain, at least, about 25 grams of fiber daily.

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FAT:

To give the body energy reserves. They are in the oil, butter, margarine and certain types of meat and fish. The amount of fat consumed in the countries of the Western world is larger than prescribed. It is recommended to reduce the content of this nutrient in the diet, particularly animal fat (saturated). On the contrary, we recommend fats of vegetable origin (mono-pollinate trades) especially olive oil.

Avoid fried foods, steamed, baked, and grilled, with microwave...

Increase consumption of calcium

THE fact: The main sources of calcium are milk, yogurt, and cheese. It is better to take the low-fat or since they give the same amount of calcium and, on the other hand, less fat.

Tip: Choose fresh cheeses; how much harder is a cheese the bigger your fat content.

Is flavones

Medically, has been given special attention to the soy is flavones, compounds of similar structure to estrogen, that have been shown to have estrogenic effects in menopausal women with what can alleviate somewhat the symptoms of menopause.

Are also associated with cardiovascular protection; However, clinical studies are not definitive in this sense, although in the laboratory have shown that soy is flavones have great anti-inflammatory potential, improve the function of endothelial cells and can prevent the formation of clots in the blood (thrombus).

Premenstrual Syndrome And Nutrition Of Women.

Elderly woman with hand on Chin in interesting position Menopause is the permanent cessation of menstruation. In developed countries usually occur around 51 or 52 years. It is a change in the physiology of women requiring special attention that the food also play an important role. Calcium is your great ally against osteoporosis.

Menopause comes when the eggs in the ovaries are exhausted and stops the function of these. This means that they can lower levels of estrogens (hormones produced by the ovaries)... and this symptoms: hot flashes, palpitations, headache, General discomfort, loss of memory, depression, pain in the functioning of the joints and osteoporosis.

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At this stage the women must care health taking meals healthy, rich in vitamins and minerals, especially calcium, and doing physical exercise regularly.

Food must be low in fat and low in total calories. It is recommended to take meals with plenty of vegetables and vegetables, cereal, bread, pasta, rice, potatoes, vegetables and fresh fruits. Olive oil is the recommended source for the contribution of fats that the body requires, but in moderation.

You need to:

•    Select low-fat dairy products

•    Increase the consumption of fish in general though, especially the white fish.

•    Choose lean cuts of meat, both red meat (beef, pork, lamb, hunting) and poultry (chicken and Turkey).

•    Among the sausage is cooked ham and the serrano nonfat and luncheon meats from Turkey.

•    If it is not fried, can take three to four eggs per week.

•    Sugar in moderation.

•    Salt sparingly.

•    Moderation in the consumption of alcoholic beverages.

•    Respect meal times.

•    Eat with moderation and variety.