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Ilya [14]
3 years ago
7

¿Que pasa cuando ingerimos algunas sustancias adictivas? A: Afectan nuestro sistema circulatorio B: Afectan nuestro sistema resp

iratorio C: Afectan principalmente a nuestro sistema nervioso central
Biology
1 answer:
algol133 years ago
8 0

Answer:

C: Afectan principalmente a nuestro sistema nervioso central

Explanation:

Al ingerir sustancias adictivas, el principal afectado o influenciado es el sistema nervioso. Aunque existen diversas formas de acción de las  sustancias adictivas, en general, éstas actúan afectando el pasaje dopaminérgico.  

La dopamina es un neurotransmisor liberado por el sistema nervioso central que causa sensación de placer. Es conocido como la "hormona del placer" y esta relacionado con la evolución de las adicciones. Las diversas sustancias adictivas alteran el funcionamiento normal del sistema nervioso, provocando un exceso de liberación de dopamina. Esta excesiva sensación de placer al consumir sustancias adictivas es lo que nos lleva a seguir consumiendo, para repetir la experiencia placentera, generando adicción. Al hacerlo, los mecanismos de recompensa del cerebro se ven afectados, siendo la causa del elevado nivel de dopamina en el organismo. Este aumento anormal del neurotransmisor provoca una respuesta de parte del organismo que radica en disminuir la cantidad de receptores dopaminérgicos. Al hacerlo, la persona adictas sienten menos placer y mas necesidad de consumir sustancias, para alcanzar el mismo efecto de euforia o uno incluso superior.

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Why doesn't your body use calories in the same way. Explain why this is true.
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Of all the nutrition myths, the calorie myth is one of the most pervasive and most damaging.
It’s the idea that calories are the most important part of the diet — that the sources of these calories don't matter.
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Even though fructose and glucose provide the same number of calories, fructose has far more negative effects on hormones, appetite and metabolic health.
Protein calories are less fattening than calories from carbs and fat, because protein takes more energy to metabolize. Whole foods also require more energy to digest than processed foods.
Increased protein can lead to drastically reduced appetite and cause automatic weight loss without the need for calorie counting or portion control.
Different foods have different effects on satiety and how many calories you end up consuming in subsequent meals. This is measured on a scale called the satiety index.
Low-carb diets consistently lead to more weight loss than low-fat diets, even when calories are matched between groups.
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However the bottom line is :

Different calorie sources can have vastly different effects on hunger, hormones, enrgy expenditure and the brain regions that control food intake.
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What diseases can affect the digestive system?
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