合高三学生吃的提高记忆力的食物

2019-03-15 13:42  点击次数: 次   作者:admin

合高三学生吃的提高记忆力的食物
 
 
脑细胞有60%由不饱和脂肪酸构成,其中最重要的是dha。dha是大脑神经细胞的重要成分,对大脑神经元件的传导、突触的生长十分重要,可增强大脑智力、记忆力与专注力。
 
dha在陆产肉类与蔬菜的含量几乎为零,只存在于海产肉类中,其中又以深海鱼类最丰富,尤其是眼窝脂肪与鱼皮部位。但大型深海鱼类位居食物链上层,体内累积过多重金属,不宜食用过量,反而是dha含量比鲑鱼还高的秋刀鱼,更为适合。
 
瘦肉
 
瘦肉与肥肉相比,脂肪少、蛋白质含量高,因此营养价值更高。除了丰富的蛋白质,瘦肉还富含维生素b、e,以及矿物质铁与磷。铁是红血球中血红蛋白的重要成分,血红蛋白是人体负责运送和交换氧气的工具,可让大脑保持活力,缺铁会引起贫血、精神涣散和记忆力减退。磷则是参与神经纤维传导、能量生成及储存的关键物质,是大脑运作不可缺少的元素。
 
味精
 
味精的主要成分是谷氨酸钠,它在胃酸的作用下可转化为谷氨酸。谷氨酸是参加人体脑代谢的唯一氨基酸,能促进智力发育,维持和改进大脑机能。常摄入些味精,对改善智力不足及记忆力障碍有帮助。由于味精会使脑内乙酰胆碱增加,因而对神经衰弱症也有一定疗效。
 
小米
 
小米中所含的维生素b1和b2分别高于大米1.5倍和1倍,其蛋白质中含较多的色氨酸和蛋氨酸。临床观察发现,吃小米有防止衰老的作用。如果平时常吃点小米粥、小米饭,将益于脑的保健。
 
豆腐
 
最新研究发现,豆腐中的大量卵磷脂是完成大脑情报传递的乙酰胆碱的原料。乙酰胆碱缺乏,是导致大脑迟钝和老年痴呆的诱发因素。
 
每周应吃上1~2顿豆腐。或者常喝豆浆。
 
大豆中虽然含有大量植物蛋白,但并不是很好消化、吸收,只有制成豆腐,吸收率才可上升到90%以上。
 
 
 
Food for Senior Three Students to Improve Memory
 
fish
 
60% of brain cells are composed of unsaturated fatty acids, the most important of which is dha. DHA is an important component of brain neurons. it is very important for the conduction of brain neuronal components and the growth of synapses. DHA can enhance brain intelligence, memory and concentration.
 
DHA is almost zero in terrestrial meat and vegetables, and only exists in marine meat, among which deep-sea fish are the most abundant, especially in eye socket fat and skin. However, large deep-sea fishes are located in the upper layer of the food chain. They accumulate too much heavy metals in their bodies. They are not suitable for overconsumption. On the contrary, the autumn saury with higher DHA content than salmon is more suitable.
 
lean meat
 
Compared with fat meat, lean meat has less fat and higher protein content, so its nutritional value is higher. In addition to rich protein, lean meat is also rich in vitamins b, e, and minerals iron and phosphorus. Iron is an important component of hemoglobin in red blood cells. Hemoglobin is a tool for the human body to transport and exchange oxygen. It can keep the brain active. Iron deficiency can cause anemia, mental distraction and memory loss. Phosphorus is a key substance involved in nerve fiber conduction, energy generation and storage, and an indispensable element for brain operation.
 
monosodium glutamate
 
The main component of monosodium glutamate is sodium glutamate, which can be converted into glutamate under the action of gastric acid. Glutamic acid is the only amino acid involved in human brain metabolism, which can promote intellectual development, maintain and improve brain function. Regular ingestion of monosodium glutamate is helpful to improve mental retardation and memory impairment. Because monosodium glutamate can increase acetylcholine in the brain, it has a certain effect on neurasthenia.
 
millet
 
The vitamin B 1 and B2 in millet were 1.5 and 1 times higher than that in rice, respectively. The protein of millet contained more tryptophan and methionine. Clinical observation found that eating millet can prevent aging. If you often eat millet porridge and millet rice, it will benefit the health of the brain.
 
Bean curd
 
Recent studies have found that a large amount of lecithin in tofu is the raw material of acetylcholine to complete brain information transmission. Acetylcholine deficiency is a leading cause of brain retardation and dementia in the elderly.
 
Eat 1 to 2 meals of tofu per week. Or often drink soymilk.
 
Soybean contains a lot of plant protein, but it is not very good to digest and absorb. Only when it is made into tofu, the absorptivity can rise to more than 90%.
 


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