Rotina de exercícios pode prevenir perdas cognitivas

Strengthening muscles can help create new nerve cells

For a long time, various social beliefs have fueled the idea that the brain and muscle are unrelated and operate “in isolation,” including some people who mock individuals who take great care of their body, popularly called the “marumba,” and distort his mind with phrases such as “every marumba is stupid.” .

However, recent studies have shown that maintaining muscle activity and/or doing routine exercise cooperates with the brain and can help prevent some cognitive losses.

Skeletal muscle, according to the site MIT Technology Reviewis what allows the body to move and is also an endocrine tissue, so it releases signaling molecules – which tell other parts of the body what to do.

These molecules that relay messages to other tissues are called myokines and are released into the bloodstream each time a muscle contracts. In one study, Scientists have shown that certain myokines are involved in controlling brain functionsuch as learning, memory and mood.

In addition, they can act as mediators and trigger beneficial processes in the brain as a result of physical exercise, such as the formation of new neurons, MIT noted.

Other research focusing on myokines found that They have neuroprotective effects against brain injury (cuts off blood flow to the brain) and neurodegenerative diseases, including Alzheimer’s disease.

Also with regard to Alzheimer’s disease, evidence suggests that physical activity reduces the risk of dementia and is linked to Slower progression of cognitive decline – in adults who are older or already have brain disease or damage Because physical activity, in a way, prevents the classic signs of Alzheimer’s disease: the formation of plaques and tangles that are harmful to the brain.

Scientists also note that the more time an individual spends in moderate physical activity, the more the brain produces glucose, or turns glucose into fuel. This relationship may reduce the risk of Alzheimer’s disease.

Another study, published on the website of the National Institute on Aging, revealed that exercise encourages the brain to maintain old network connections and create new ones that are essential for cognitive health.

In addition to, Scientists believe that aerobic exercise, such as walking, is more beneficial The brain is more than aerobic, stretching and toning.

Taking into account each individual’s age group, the researchers found that Muscle movements of a healthy young man They activate several chemical pathways in the muscles, which stimulate the production of proteins embedded in muscle fibers. This leads to an increase in muscle size.

In the elderly, the signals sent by movements, which encourage muscle growth, are much weaker. For this reason, it is more complicated for older adults to gain and maintain muscle mass, but it is possible, and this attempt is necessary to support the brain.

The Massachusetts Institute of Technology classifies it as “although difficult for older adults.” [ganhar e manter massa muscular]This can still be done, and this maintenance is necessary to support the brain. Even moderate exercise can increase metabolism in important brain areas.”

Keeping thinking about age, researchers have found that the hippocampus (a structure located in the temporal lobe) shrinks in adulthood and leads to an increased chance of developing dementia, as well as memory problems. However, they found it Anaerobic training (high intensity and short duration) increases the volume of the hippocampusSpatial memory improvement (the part responsible for recording information about surroundings and locations)

In addition, physical training also increased the volume of the hippocampus by 2%, which added to the area about one to two years of stability, that is, without loss.

The MIT website considers that there is a “strong molecular language spoken between your muscles and your brain.” The data indicate a positive and promising relationship between these two parts of the human body.

While this doesn’t mean that everyone who exercises more frequently and pays attention to the muscular system will be more intellectually insightful, studies show that there are many benefits to physical activity for the body and brain.

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