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High-intensity exercise improves your memory

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New Delhi : Some physical exercises may also be good for your brain as researchers have found that high intensity exercise may lead to better memory.

The study, published in the Journal of Cognitive Neuroscience, could have implications for an ageing population which is grappling with the growing problem of catastrophic diseases such as dementia and Alzheimer’s.

 

In the experiment, six weeks of intense exercise – short bouts of interval training over the course of 20 minutes – showed significant improvements in what is known as high-interference memory, which, for example, allows us to distinguish our car from another of the same make and model.

The findings are important because memory performance of the study participants, who were all healthy young adults, increased over a relatively short period of time, the researchers said.

They also found that participants who experienced greater fitness gains also experienced greater increases in brain-derived neurotrophic factor (BDNF), a protein that supports the growth, function and survival of brain cells.

“Improvements in this type of memory from exercise might help to explain the previously established link between aerobic exercise and better academic performance,” said lead author of the study Jennifer Heisz, Assistant Professor at McMaster University in Ontario, Canada.

“At the other end of our lifespan, as we reach our senior years, we might expect to see even greater benefits in individuals with memory impairment brought on by conditions such as dementia,” she said.

For the study, 95 participants completed six weeks of exercise training, combined exercise and cognitive training or no training (the control group which did neither and remained sedentary).

Both the exercise and combined training groups improved performance on a high-interference memory task, while the control group did not.

Researchers measured changes in aerobic fitness, memory and neurotrophic factor, before and after the study protocol.

The results revealed a potential mechanism for how exercise and cognitive training may be changing the brain to support cognition, suggesting that the two work together through complementary pathways of the brain to improve high-interference memory.

 

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Corona

Covid toll in Karnataka is a worrying sign for state government

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Even though Karnataka recorded the lowest number of Covid deaths in April since the virus struck first in 2020, the state is recording a rise in the positivity rate (1.50 per cent). Five people died from the Covid infections in April as per the statistics released by the state health department. In March, the positivity rate stood around 0.53 per cent. In the first week of April it came down to 0.38 per cent, second week registered 0.56 per cent, third week it rose to 0.79 per cent and by end of April the Covid positivity rate touched 1.19 per cent.

on an average 500 persons used to succumb everyday in the peak of Covid infection, as per the data. Health experts said that the mutated Coronavirus is losing its fierce characteristics as vaccination, better treatment facilities and awareness among the people have contributed to the lesser number of Covid deaths.

During the 4th and 6th of April two deaths were reported in Bengaluru, one in Gadag district on April 8, two deaths were reported from Belagavi and Vijayapura on April 30. The first Covid case was reported in the state in March 2020 and three Covid deaths were recorded in the month. In the following month 21 people became victims to the deadly virus, and May 2020 recorded 22 deaths. The death toll recorded everyday after May crossed three digits. However, the third wave, which started in January 2

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