Beet juice consumed before workout increases brain performance


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Beet juice consumed before workout increases brain performance

Many studies have so far confirmed that regular physical activity can have a positive effect on the functioning of our brain. This relationship is particularly noticeable especially in the elderly, when, together with age we suffer from weakness of brain function. According to recent research, it is possible to strengthen the exercises effects on the brain by drinking beet juice before taking the physical activity of moderate intensity.

Researchers studying this interesting relationship suggest that drinking beetroot juice may help improve brain function especially in older people, but drinking it earlier helps our brain for the future.

As is evident from the findings of scientists, the older adults, who consume beet juice before a moderately intense workout, have better connectivity in brain regions that are associated with motor functions, compared to individuals who do not drink beet juice before exercise.

The research team from the Department of Health and Exercise at Wake Forest University in Winston-Salem, North Carolina W. Jack Rejeski at the helm, notes that increased brain connectivity among adults who drink beet juice is comparable with connectivity that is noticeable in people that are much younger.

Beets are root plants, which are known for their wide variety of properties and applications. Their popularity has been fueled by potential health benefits including the ability to lower blood pressure and increase productivity during physical activity. Their ruby juice delights with taste and is a valuable source of vitamins, minerals, and antioxidants.

Many of the benefits associated with the consumption of beets, is attributed to the high content of nitrates. When ingested, they are converted into nitric oxide, which, as demonstrated by the study, lowers blood pressure and increases blood flow to the brain.

Many previous studies indicated that exercise has an excellent effect on the brain so in their scientific tests Rejeski and his team decided to examine whether the beet juice can increase the benefits of physical activity in our brain.

Beetroot juice strengthens the cerebral cortex

A study conducted by researchers from the Department of Health and Exercise at Wake Forest University in Winston-Salem, North Carolina, included 26 participants aged 55 years and over, who suffered from high blood pressure. None of the participants exercised regularly, and most of them consumed two different types of blood pressure lowering drugs.

Each test participant had to participate in a 50-minute moderate treadmill exercise three times a week for six weeks. An hour before the practice session, one group of participants consumed the beetroot juice containing 560 milligrams of nitrates, while the others drank a placebo beverage low in nitrates.

After six weeks, researchers investigated the brain function of individual participants using MRI.

As tests have shown, people who received beet juice before exercise, have a structurally reinforced cortex – the region, in particular, that help to control body movements and motor skills, as opposed to those consuming a placebo, who showed no difference.

Interestingly, people who used the only supplement of beet juice also showed greater connectivity between brain regions, in particular, responsible for cognition, emotion, and the like. As the researchers noted leader of the study, the activity of brain connections, is usually visible at similar levels in people at much younger age.

The cerebral cortex during exercise receives and processes signals from muscles, and beet juice enhances this effect by converting nitrate to nitric oxide delivering more oxygen to the brain.

Nitric oxide is a powerful molecule that allows hypoxic areas in need of oxygen or that need to gain an extra dose of this treasured component, and the brain is one of the sphere of the body most in need of it.

As scientists say, it will be necessary to carry out much more additional research on this subject, but as it is shown by the tests already, what we consume every day, has a very significant impact on our health in the future. Consumption of beet juice can, therefore, play an imperative role for our health and mobility of the brain in old age.

Many studies are highlighting the positive impact of exercise on the brain, especially in people suffering from hypertension, and now they can be modified by an element associated with the consumption of beet juice. Increased connectivity in the brain that can be gained through this ruby vegetables enables us to rejuvenate the brain, effectively preventing the weakening of its essential functions.

Why in some cases exercises do not work?


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Why in some cases exercises do not work?

Regular physical activities are considered as an essential element, supporting the prevention of obesity and related to extracurricular pounds health conditions. As it turns out, some of us derive much greater benefit from regular exercises than others. Recent studies seem to know the answer to the question why is this happening.

According to recent findings based on research in both mice and humans, higher levels of selenoprotein P – the protein secreted by the liver, might cause the less dynamic exercise effects and, consequently, limited benefits associated with the regular physical activity.

These studies were conducted by researchers from the Canadian College of Medical Sciences, Kanazawa.

Studies suggest that selenoprotein P can cause resistance to physical effort.

Current guidelines recommend that adults should practice an average of about 150 minutes deciding on the aerobic activity of moderate intensity or 75 minutes of intense activity a week because this amount will allow remaining healthy.

However, depending on the person, the response to exercise – both regarding strength and metabolic health, may be entirely different. Some people do not feel any results despite regular aerobic exercise. Similar relationships show that 15-20 percent of individuals who have type 2 diabetes, where, despite performing a routine physical activity, hypoglycemia does not show appropriate changes.

Recent discoveries show that some of us suffer from resistance to exercise, and therefore have limited opportunities to benefit from the regular physical activity.

The precise mechanisms of resistance on exercises have not been clear, but recent studies indicate that selenoprotein P may play a significant role in this relationship, which is why scientists from the Canadian College of Medical Sciences, Kanazawa undertook further study of this compound.

During the tests, the team assessed the effects of physical exercise on two groups of mice – some of them had a deficiency in selenoprotein P, and the other part of them was a randomized control group. Both groups ran on the treadmill for 30 minutes a day for one month. Researchers have found that those of the mice that were free of selenoprotein P had double exercise capacity as those in compared control group.

Interestingly, the mice exhibiting a limited amount of selenoprotein P at the end of the month-long test had reduced the blood glucose level after the injection of the insulin hormone.

It should also be noted that the control group of mice before the month of treadmill training, received an additional dose of selenoprotein P. Rodents in this group have shown, among other things, a reduction in the AMPK enzyme phosphorylation in muscle tissue, and as the scientists explain – AMPK phosphorylation is strongly linked to the many benefits that regular exercises can give to us.

Besides, the researchers showed that mice lacking LRP1 – selenoprotein P receptor in muscle, could not absorb the selenoprotein P into the muscles, and phosphorylation of AMPK hasn’t got any influence on their effectiveness on the exercise.

Conclusions from the study may support the discovery of medicines that stimulate the benefits of exercise.

A team of researchers from the Canadian College of Medical Sciences in Kanazawa took up further studies to demonstrate how the selenoprotein P may affect the effectiveness of exercise in humans.

Therefore, 31 healthy women who did not train regularly were subjected to the study. All women participated in aerobic training during the eight-week period, and their maximum oxygen uptake during exercise was monitored throughout the period to determine their exercise tolerance during exercise.

The team found that women with high levels of selenoprotein P in the blood before the start of the 8-week study showed lower maximal oxygen intake compared to those with lower levels of selenoprotein P. Researchers believe that this liver-induced protein promotes exercise by targeting the LRP1 receptor on the muscles.

Further studies are needed to obtain more detailed information on the effects of selenoprotein P on physical activity, but the team agrees that this study may pave the way for the development of medications that will help to reduce the production of selenoprotein P to increase exercise endurance.

So far, the present findings suggest that future screening for inhibitors axis (selenoprotein P) – LRP1 can help develop stimulant medication effort to treat diseases associated with a lack of physical activity, such as type 2 diabetes.

Drinking tea may stave off cognitive decline


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Drinking tea may stave off cognitive decline

Due to the high content of antioxidants, tea showed the ability to inhibit the risk of diabetes, heart disease, and cancer. However, its potential benefits to our health do not end there. Researchers recently discovered that regular tea drinking might be associated with a significant decrease in cognitive decline in elderly age, especially those with a genetic risk for Alzheimer’s disease.

New research suggests that regular consumption of tea helps reduce the possibility of deterioration of cognitive function in later life.

Tea is one of the most popular beverages in the world, and most often we reach for black tea. Possible benefits of regular consumption of tea are well documented, and a recent study published in The American Journal of Public Health binds them also with reducing the risk of cardiovascular disease.

Earlier studies also suggest that drinking tea may have a beneficial effect on the brain, and green tea can have a positive influence on our memory.

The latest study held by Feng Lei and co-workers from the Department of Psychological Medicine at National University of Singapore (NUS) Yong Loo Lin School of Medicine aimed to establish a link between regular tea consumption and cognitive decline.

The results of the study were based on data analysis of 957 Chinese adults at age 55 and more. Researchers in the years 2003-2005 collected information on tea consumption in the research group, taking into account the amount, frequency, and type of tea consumed by participants. Subsequently, the cognitive functions of the participants were assessed every two years. During the analysis, 72 new cases of neurochemical disturbance were identified among the participants.

People who drink tea regularly reduced the risk of cognitive decline to 86%!

Individuals who drink tea regularly reduced by 50% risk of a decline in cognitive function compared to those who drank tea rarely or not at all. Interestingly, among adults with the APOE e4 gene – which is associated with an increased risk of Alzheimer’s disease, those who regularly drink tea have reduced the risk of cognitive decline by as much as 86%.

During the study, the researchers also take into account many other factors that can interfere with cognitive functions including, among others, the emergence of other states of health, social activity of respondents, physical activity and other lifestyle factors that could have an impact on cognitive function.

The researchers note that the benefits for cognitive function of the brain, in particular, been observed in people who consumed tea brewed from the leaves of tea such as green tea, black tea or leaf tea.

This study was not intended to determine the potential mechanisms that drinking tea can have on our brains. But as the author of the survey – Lei, however, shows, the potential benefits for cognitive function, are related to substances that are in the tea known as theaflavins, catechins, thearubigins and L-theanine.

These compounds have a strong anti-inflammatory and antioxidant effect, as well as numerous bioactive properties that can influence our brain’s protection against vascular damage and neurodegeneration. Understanding these extraordinary biological mechanisms is still very limited. Therefore it is necessary to carry out more research to help to get the final answer.

However, as can be deduced from recent studies, drinking tea is an affordable and truly enjoyable way to prevent dementia and many other diseases associated with the impaired cognitive function.

As follows from the analysis of the World Health Organization (WHO), up approximately 47.5 million people worldwide living with dementia, and every year, are diagnosed another 7.7 million new cases of the disease. According to estimates, this problem becomes bigger and bigger, and by 2050 the number of people who have dementia can increase up to 135.5 million.

A study by Lei and his team was based on an analysis of the particular group of an adult of Chinese people, but scientists believe that the effect of tea may be similar for other populations and can have a significant impact on the prevention of dementia.

The research related to the search for drugs that will allow for effective pharmacological treatment of neurodevelopmental disorders like dementia is so far at a very early stage, and currently available treatments are not enough. Consequently, tea as one of the most common beverages in the world can turn out to be a solution that will ease the risk of cognitive dysfunction in later life in a simple and very pleasant way.

Researchers are planning to conduct further studies on the relationship between tea and its effects on cognitive function, so we may soon be able to get an effective drug based on healthy bioactive tea compounds.