The Latest News How Stress Affects The Brain Seriously Everyday

A developed country like America, a large population is suffering from stress. Do you want to know how stress affects the brain seriously?  Just see the below checklist.

  • Most adult Americans are suffering from an increased level of stress for the last few years. It will be the upcoming serious Mental and Health problem of the decade.
  • The level of extreme stress has gone up to 48 percent in the last 5 years.
  • It shrank the white matter of the brain responsible for thinking and memory.
  • The personal and professional life hampered by 48 percent.
  • People with stress complain of physical symptoms increases by 77 percent in comparison to a normal man.
  • Increases the number of early Alzheimer’s disease.

What is stress? 

According to NIMH (National Institute of Mental Health), stress is ‘the brain’s response to any demand’. The level of harmfulness of stress depends on the treatment, intensity, and duration. The stress can be of different types. Such as short term and long term.

Sometimes stress initiates from a one-time and single incident and lasts for the short-term. While the long-term stress initiates from re-occurrence of incidents. This long-term stress is extremely harmful and toxic to health. This stress is often called toxic or chronic stress.

All stresses have physiological reactions. Long-term stress is more harmful as it impacts our brains and body directly. 

How stress affects the brain?

The brain first identifies stress from the environment. This stress determination process initiates from the HPA (Hypothalamus-Pituitary-Adrenalin) axis. After the determination of stress from the environment, this sends a message to the hypothalamus.

Hypothalamus Activity

Hypothalamus wakes up the Pituitary glands. This small gland releases essential hormones to regulate the system of the stress response. These hormones start traveling from the brain to the adrenal glands. Then the adrenal glands secrete cortisol. 


is a well-known stress hormone. This hormone regulates the activities of organs to keep the body acts on the right track. This hormone provides the power of thinking to the brain, energize the muscles, enhances the breathing and heart rate. 


Amygdala is a small kidney sized structure and centrally located within the brain. This structure identifies the stress and instructs the HPA axis to act. It detects both biological and emotional stressors.

The biological stressors identify the internal body-stress caused by illness or injury. The environmental stressor identifies externally caused stress like frustration, panic, and sadness.

Amygdala links with the prefrontal cortex of the brain. This is the frontal large part of our brains. As this prefrontal cortex regulates the actions and thoughts, it can be termed as the brain’s control center.

This regulates the emotional reactions to stress. This regulation helps an individual not to become excessively stressed.

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Cortisol Secretion

The amygdala instantly initiates the signal to the prefrontal cortex about the identified stress or threat. The prefrontal cortex helps the amygdala to identify the stress with lesser intensity.

To reduce the stress level, it is important to limit cortisol secretion from the HPA axis.

This process helps an individual to calm down during a life-threatening incident. It helps to perceive the situation as non-harmful. Thus the person can calm down after any stressful incident. 

Impact of long-lasting stress on the brain

Managing short-term stress is easier to deal with. But in case of long-term stress, both the mind and body get impacted. The re-occurrence of any incidence regularly triggers harmful panic and stress.

When the activation of the HPA axis happens continuously, especially in long-term stress, the mechanism of stress control procedure will change in trying and dealing with harmful long-run stress.

It will initiate a low level of cortisol and develops a cortisol imbalance. That will reduce the efficiency of the stress control process. 

There lies a fact that maturity does come easily. It takes time to incorporate with the mind. Along with time and situations, maturity comes.

If a person leads his early life without love and adore but with harsh situations and ignorance, the maturity comes earlier in him. That is not a normal process. This also triggers severe depression, stress, and anxiety. Only the social buffering like love and care will heal that anxiety and stress up to a certain level. 

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Stress impacts the brain in 5 significant ways 

Stress affects the brain and doing serious damage to the brain. If untreated for long-duration, it can lead to serious mental disorders.

1. Draw changes in the structure of the brain

It is clinically proved that long-lasting stress changes the pattern of brain structure and functionalities. The brain is constructed with neurons and other supportive cells. These are commonly known as grey matter.

Grey matter is mainly responsible for problem-solving and decision making. Other than the grey matter, the white matter of the brain consists of axons. Axons link different parts of the brain to continue uninterrupted communications.

The outer layer of axons is covering by a myelin sheath. That catalyzes the speed of electrical signals for communication throughout the brain.

The chronic and long-lasting stress increase myelin production. That creates a significant imbalance between the grey and white matter. This changes the structure of the brain. Such changes are not significant in the short-term stress.

1. Mental illness or disorder

Long-lasting stress is responsible for anxiety and mood disorder. Stress generally creates mental depression and other different mental disorders. According to different studies, chronic stress boosts up the myelin-secreting cells and reduces the neuron significantly.

This overproduction of myelin within a few areas of the brain reduces the efficiency of communication balance and timing. This enhances the different mental disorders and illnesses.

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3. Brain shrinkage

This depends on the intensity of stress. The chronic and intense stress shrinks the volume and the size of the brain. Stressful events impact emotional awareness. Traumatic events impact the mood and mind significantly.

4. Brain cell death

The Hippocampus of the brain regulates learning, emotions, and memory. Neurogenesis occurs within the hippocampus throughout the life of an individual. Stress creates no difference in the production of new neurons. But it impacts on the survival of those new cells. 

5. Impacts of Stress on Memory

Stress reduces the capacity of the memory. Under severe stress and depression, no one can memorize instantly. Chronic stress reduces the memorizing power to such a low, that it might take time to recollect or sometimes become impossible to recollect. 

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Stress has become a part of life. From job to relation, everywhere is stress. The causes of stress can’t be ignored as they are an integral part of life. This thing is, one should realize and analyze the cause of the stress.

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If you get the insight into stress, you might deal with the stress easily. Another thing is the impact of stress is deadly both on our minds and bodies. If the stress dealing capacity becomes uncontrollable, you need to consult with the physician for betterment.

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