动物实验 z-bo 2020-09-03 392

　　Eating less and eating less will make your head more agile (if it is a worm). We already know the benefits of calorie management. For example, flies, mice, and monkeys eat longer. Now, Kaveh Ashrafi of the University of California, San Francisco has discovered that diet can also enhance brain function. His research team trained a worm called Caenorhabditis elegans to learn how to associate the chemical smell of methyl ethyl ketone with food rewards. They placed the nematodes in the center of the circle and found that more insects leaned toward the end and smelled of methyl ethyl ketone instead of alcohol. This proves that their learning is very effective.

　　The tested nematodes are divided into 3 groups, one group can eat anything you like, one group is hungry for 1 hour, and the other group received a calorie restriction diet. It is half of the normal diet of nematodes and is free to eat nematodes. Twice the number. Fasting nematodes showed similar results, showing low calories and similar effects on short-term fasting. Eat fewer calories

　　will consume a chemical substance called quinonic acid in the brain, which can activate the neurons involved in learning. When the experimenter reduces kynurenic acid, even if the calorie intake is not controlled, the learning ability of the nematode will be improved. Ashrafi said that mammals have a similar phenomenon. According to a 2008 study, if the calorie intake of people under 60 is reduced by 30%, their language learning will be better.

　　means evolution, concludes Devin Wahl of the University of Sydney. He said: "When you are looking for food, you are trying to beat the competition, so your brain is very powerful." However, if you are too hungry, your cognitive function will decline. This may be because you are too hungry and only consider food.