Intake of foods with high polyphenol content can improve human memory and learning ability

Researchers at the University of Northumbria in the UK have found that increasing hemoglobin (HB) concentration can promote cerebral blood flow (CBF) in the cerebral cortex, thus further preventing cognitive decline A number of dietary intervention trials (http://www.chemdrug.com/sell/24/) have found that the intake of foods with high polyphenol content can improve human memory and learning ability, especially those containing tea, gingko, cocoa powder and blueberry, which may be related to the prevention of brain blood volume and oxygen metabolism decline by polyphenols In this study, 27 subjects aged 45-60 were given 60 mg MC juice or placebo At the beginning of the trial, the researchers analyzed and evaluated the cerebrovascular response, cognitive performance and blood of the subjects at the first, second, third and fifth hours (http://www.chemdrug.com/sell/76/) The results showed that the concentrations of total hemoglobin and oxidized protein were significantly different in the subjects after one hour's intake of cherry juice In addition, compared with the placebo group, the systolic blood pressure of cherry juice decreased by 6 mmHg after one hour In terms of total hemoglobin concentration, the researchers suspect that this may be related to the properties of relaxing blood vessels and anti hypertension of phenolic acid (vanillic acid and protocatechuic acid) contained in MC juice Previous studies also pointed out that beetroot's role in improving cognitive performance is not obvious, such as concentration, memory, attention and information processing ability However, the researchers recently found that older patients with type 2 diabetes had improved simple response times 14 days after ingestion of beetroot juice compared to the control group The team's 2016 trial found that eating (MC) reduced men's high blood pressure by 7% Several studies have also confirmed that the acid cherry is rich in polyphenols, including flavonoids such as isorhamnetin, quercetin, catechins and anthocyanins According to plant extract (http://www.chemdrug.com/sell/32/) bridge media, polyphenols play an important role in the control of blood flow parameters, such as increasing nitric oxide production and antioxidant capacity, reducing fat oxidation, inhibiting inflammatory pathways, etc To promote cognitive health by improving blood flow in the brain (http://www.chemdrug.com/article/7/) is currently relatively complex, because it involves multiple regulatory mechanisms and various structural components, and further research is needed to prove it.