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.
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