According to one study, the cortex (outer layer) of the brain is more obese in adults who exercise regularly even if they are sedentary. Medicine and Science in Sports and Exercise.
Cortical thinning — the atrophy of that outer layer — is associated with declining brain health that can occur according to your age.
Sitting less is still important for your health, but regular exercise can help protect your brain when you are otherwise unable to be very active.
You know that sitting behind you all day is bad for your health. But recent research brings some good news for those of us whose work demands that we stay at the desk: Your daily battle of exercise protects your brain, even if you’re otherwise sedentary.
This is because it helps to keep your brain’s cortex at the outermost layer – thick and healthy. With age, the cortex naturally stabilizes, a process known as cortical thinning, which is associated with age-related cognitive decline, especially when it occurs in the frontal and temporal lobes, which are associated with memory, attention, and Are responsible for planning.
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Research suggests that you can prevent this thinness in some ways. One is with regular moderate to vigorous physical activity, such as cycling. Another is limiting sedentary behavior, such as sitting at a desk all day. What has become less clear is whether exercise can protect against thinness that is otherwise sedentary.
To find this out, a group of scientists in British Columbia measured activity levels, sedentary behaviors and amicable thicknesses of 30 adults with an average age of 61, to increase exercise and reduce sedentary time between adults. Others were enrolled in the study. Osteoarthritis of the knee.
The researchers tracked participants’ exercise and sedentary time for seven days using fitness trackers and used MRI scanning to measure their cortical thickness.
The group received an average of 70 minutes of vigorous physical activity each day, and they spent almost 12 hours a day doing nothing more rigorous than reading a book or surfing the web outside of their daily exercise.
When researchers crunched the data and compared brain scans, they found that higher levels of physical activity were associated with greater cortical thickness, especially in frontal areas, regardless of their sedentary time. There was no association between reduced thickness or thinness with greater sedentary behavior outside of exercise.
Sitting is generally bad for your health and should be as limited as possible, this is good news for those stuck in desks or other sedentary jobs.
One possible explanation is the high amount of MVPA [moderate to vigorous physical activity] Provide a strong neuroprotective response, which confirms the negative consequences of too much SB [sedentary behavior], ”The study authors wrote Medicine and Science in Sports and Exercise.
Keeping your cortex thick with regular exercise can relieve you from dementia and brain disease. According to the study, meeting current exercise guidelines of at least 150 minutes a week – less than half an hour per day – moderate to vigorous exercise reduces Alzheimer’s disease risk by 38 percent.
For reference, moderate to vigorous exercise is defined as any activity that increases your metabolism at least three times which is at rest (defined as 1 metabolic equivalent or Met). . Cycling at about 10 mph has a value of 4 meters, which means that it forces you to use four times the oxygen that you rest. So easy rides around the city can also help you maintain a healthy brain.
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