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How Does Stress Weaken The Immune System

5 min read

How Does Stress Weaken The Immune System – Chronic stress has a very negative effect on our immune system. According to the American Psychological Association, long-term stress disrupts the connection between our immune system and the processes involved in managing our stress (American Psychological Association et al., 2018; Morey et al., 2015; Segerstrom and Miller, 2004).

In a positive response to stress, anything our body perceives as stress acts on the sympathetic nerves around our body that connect to our lymphoid tissues, which control the immune system. Depending on the level of stress, these fibers can release substances that bind to white blood cells of the lymphoid type, making these cells less sensitive. Hormones such as epinephrine, norepinephrine, and cortisol that are released by the first response to stress (brain structures such as the hypothalamic pituitary adrenal axis and sympathetic norepinephrine medullary axis) also act directly on these white blood cells for similar effects (Mariotti, 2015; Segerstrom; Miller). , 2004).

How Does Stress Weaken The Immune System

The immune system is called innate immunity, and in the immune system, white blood cells such as neutrophils and macrophages produce an inflammatory response at the site of damage and interact with proteins called cytokines to promote wound healing. Innate immunity is dysregulated in the case of allergies or autoimmune diseases (Sagerstrom and Miller, 2004). Chronic stress regulates the activation of the immune system by affecting cells and proteins.

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The most widely accepted theory of how stress affects the immune system was proposed by Dhaber and McEwen in 1997, called the biphasic model of stress. This theory states that acute stress is beneficial in increasing the immune system, but short-term stress is ineffective because it reduces the immune system by altering cytokine production (Dhabhar and McEwen, 1997). This increases the risk of other infectious and autoimmune diseases that can be exacerbated by aging and immunodeficiency, for example by making people resistant to vaccination (Sagerstrom and Miller, 2004).

This chart shows how long-term stress can disrupt immune cells that can cause long-term imbalances in the immune system, resulting in long-term recovery.

Bae and colleagues (2019) report that chronic stress leads to autoimmune diseases, cancer, and chronic diseases due to its effects on immune signaling pathways (Bae et al., 2019). Some support for this finding comes from De Rosso and colleagues who show that chronic stress reduces tumor immunity (De Rosso et al., 2018). Terry and his colleagues also showed that stress counteracts cytotoxicity leading to improved immunity. suppression (Terry et al., 2017).

A study by Segerström and Miller found a growing evidence of the relationship between stress and the immune system by changing the number of white blood cells and their activity, and that these effects do not differ by race or time. Stress is activated, meaning that when we experience stress for a while, our natural defenses are heightened (Sagerstrom & Miller, 2004). So it is important to remember that stress, which begins naturally in response to events and can be reduced naturally, can be a tool to help deal with the demands of the environment. For chronic stress, they show that chronic stress affects almost all immune systems.

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Holzer and his team show that a decrease in the immune system due to stress leads to more stress, damaging our immunity (Holzer et al., 2017). They identify the gastrointestinal tract as a site where this reduced immunity affects stress and resilience in the brain, and inflammation in the gastrointestinal tract that leads to differential diagnosis in the brain axis. These results show that stress damages our immune system, which needs to break down and react.

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Getting sick after a stressful event is not an accident. Your brain and immune system are constantly communicating, which means that emotional disturbances can cause physical symptoms. Your immune system is closely related to your stress level.

The effects of stress can cause stress hormones to circulate in the body. Although these hormones are useful in severe cases, their ability to interfere with the immune system can lead to inflammation, a decrease in white blood cells, and increased disease and tissue damage.

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As strange as it may sound, our ability to experience stress is an ancient survival mechanism known as ‘fight or flight’. These chemicals are your body’s way of setting off alarms: an internal mechanism that dates back to our hunter-gatherer days. Back then, “squeezing” was the real danger of coming face-to-face with a tiger. Seeing a tiger stimulates the hypothalamus and adrenal glands, which start releasing adrenaline. Adrenaline gives your body the energy it needs to run away from the tiger. As you can see, this stress was very rewarding!

Another type of “good stress” can occur before an important (but nerve-wracking) event, such as an exam or a job interview. You may experience severe but temporary anxiety or depression. This type of stress gives you energy or alertness, which can improve your performance.

When stress is chronic—that is, constant or persistent—it can do more harm than good. In some cases, chronic stress can take a toll on mental and physical health.

Depression is often caused by constantly worrying about things outside of your control – such as family or work problems. Unfortunately, chronic stress is a common factor in modern life and is linked to many diseases.

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Post-traumatic stress disorder (PTSD) is another form of chronic stress. PTSD can occur after a traumatic life event such as an accident or natural disaster. Those with PTSD may be ‘fixed’ in chronic depression. Their minds believe that the threat is still there, meaning that ‘fight or flight’ continues. As a result, their bodies are bombarded with hormones associated with fight or flight, which can disrupt the body and mind.

Your immune system is your body’s first line of defense against bacteria, viruses, and parasites. Your organs, tissues, cells and cells work together to fight harmful substances and protect you from disease.

Research has shown that people who experience chronic conflict experience more stress and subsequently have a weakened immune system. This increases their risk for infectious and autoimmune diseases.

It seems that chronic stress can reduce the ability of our immune system to fight against antigens, pathogens that can make us sick. This can make us vulnerable to disease and illness.

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When you’re stressed – that is, ‘fight or flight’ – your body starts releasing more of the stress hormone, cortisol. Cortisol works to prepare your body to escape the dangers you are facing. To do this, it suppresses the immune system by reducing the amount of proteins that are needed to express certain immune cells. This reduces the number of immune cells known as lymphocytes (B cells and T cells).

Lymphocytes are an important part of the immune system, they work to recognize dangerous enemies and kill antigens that cause disease. With fewer lymphocytes, the body has an increased risk of disease and illness, and is more prone to chronic disease. The body also takes longer to heal from injuries and illnesses.

In the end, the immune system is very weak, which makes it possible for the virus to spread, as well as headache, heart disease; Diabetes, asthma and ulcers.

Cortisol is needed to reduce inflammation in the body. This is a good thing – but in a short time. Over time, the body’s efforts to reduce inflammation suppress the immune system. Short-term stress causes cortisol to rise, but over time it is less effective in controlling inflammation. Immune cells become less sensitive to cortisol, which weakens the immune system and can cause inflammation.

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This chronic inflammation weakens the immune system, increasing the risk of colds, flu, chronic illnesses, and even food allergies. Since the immune system resides in the gut, gut health is also affected, which can increase the risk of autoimmune diseases such as celiac disease.

Remember, stress hormones are designed to provide short, powerful bursts of energy in the body. They work to make the heart beat faster, causing it to pump blood two to three times faster than normal. Our children get shorter, our breathing quickens, and all our thoughts are focused on getting out of harm’s way.

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