Tyrosine supplementation in the elderly can not only improve their emotional level, but also improve their cognitive ability.
Tomato is a common vegetable, which is rich in vitamins A, C, P, B, cellulose and organic acids. History of WeChat official account: What color food do you eat to protect your brain? (Click on the blue word to jump) As mentioned earlier, lycopene in tomatoes has antioxidant effect. It can protect cells from damage, repair damaged cells, inhibit and eliminate free radicals in human body. Protect the cardiovascular system and reduce the incidence of heart disease and hypertension. It has a certain neuroprotective effect and can delay the decline of human cognitive function. Today, we will talk about another substance rich in tomatoes-tyrosine.
Tyrosine is the precursor of many important brain chemicals and human hormones, and plays an important role in human emotional regulation and nerve stimulation. Tyrosine is the precursor of dopamine, adrenaline and norepinephrine, which are brain chemicals responsible for directly regulating people's positive emotional regulation. In addition, tyrosine is also the basic component of melanin, and the color of our hair, eyes and skin will also be involved.
Tyrosine can improve working memory.
According to the results of brain imaging, people who consume more tyrosine from food every day have more connectivity in the prefrontal cortex when performing working memory test tasks. The differences affecting the working memory ability of healthy elderly people may be in striatum and frontal lobe area. In addition, this study also found that even a single large dose of tyrosine intake will have a significant positive effect on the cognitive function of healthy people.
Previous studies have found that the subjects ingested 100mg and 150mg of tyrosine per kilogram of body weight, and after about 2 hours, tyrosine would reach the highest concentration in plasma. However, aging itself will reduce the binding ability of dopamine receptors and transporters in the brain. As a precursor of dopamine, the tyrosine level of the elderly will also decrease accordingly. Some people think that when we artificially supplement more tyrosine to the elderly, it will affect the body's ability to synthesize dopamine, thus hindering cognitive ability, so the elderly should consume less tyrosine than the young.
Besides tomatoes, other foods are also good sources of tyrosine. For example: beef, lean meat, cheese, milk, chicken, eggs, wild fish, tofu, sweet potatoes, spinach, green peas, sweet corn, kiwi, bananas and blueberries. As long as the content of these foods is increased in the daily diet structure, our brain memory ability will be improved invisibly over time.