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Why The Brain Spends A Lot Of Energy Even While Resting

In this study, published in Science Advances, the researchers studied the effect of this high metabolic burden in other types of nerves. They say that this investigation will be helpful in better understanding the fuel management of the human brain and it will also reveal why our brain is so fragile in terms of this fuel supply, a puzzle of our body’s energy management. It was bothering me for a long time.

The human brain spends ten times more than the energy consumption of the whole body. It uses 20 percent of the energy from the food of the average person when he is resting. But why this happened was not yet known. It was very important for human neuroscience to know this mystery of why the brain needs so much energy even when it is inactive. Now the answer has been found.

Role of a particular neuron

Scientists have discovered such a hidden neuron in the brain that consumes a huge amount of our fuel. When a cell in our brain sends a signal to another neuron, reason is able to do so through the space between the two, which is called a synapse.

First, a neuron sends sac-like blisters to their tails so that they can reach very close to the synapse. These blisters are drawn into the neurotransmitters of the neuron, which act as a cover or envelope for the message. These filled envelopes are then carried to the edge of the neuron where they meet the lining and eventually reach the synapse.

Energy consumption in the active brain

Upon reaching the empty space at the synapse, the transmitter attaches to the receptors or receptors of the next cell and thus this process continues. Scientists were already familiar with this fundamental process of nerves, in which a lot of brain energy is used. The nerve endings or terminals near the synapse cannot hold molecules of this much energy. This means that the nerves have to generate their own energy for this process.

This is the reason why an active mind consumes so much energy. But why does energy continue to be consumed when this system is silent or not active. To know this, researchers did many experiments on the end points of the nerve. In this they compared the metabolic state of the synapse in both active and inactive conditions.

Role of ‘pump’

The researchers found that even when the terminals were not working to forward the message, the blisters in which the message went still needed a lot of energy. They found that the ‘pump’, which works to send protons forward from the blisters and pull them in, never rests. Due to which he always needs energy. This ‘pump’ is responsible for the metabolic energy consumption of the synapse.

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