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Study Finds That Exercise Isn’t Necessarily Good For Our Immune System

Study Finds That Exercise Isn’t Necessarily Good For Our Immune System

We are all aware of how exercise helps our body to become better and makes us fitter. But studies have shown that the reverse is also true.

Following the popular saying that too much of a good thing can be bad, it has been revealed through many studies that too much exercise actually harms the body, particularly the immune system. This can come as a surprise to many of us, but the evidence is there.

Intense vs. Moderate Exercise

Several studies have shown that there has been a direct negative effect on the immune system of people who performed strenuous amounts of exercise without a proper amount of rest in between. Various published papers throughout the years have shown evidence of this fact. Hence, these findings cannot and shouldn’t be taken lightly.

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A study conducted in Australia, the results of which were published in 2007, brings light to the suggestion that elite trained athletes, i.e. the ones who perform and exercise harder than moderately exercising people are more susceptible to upper respiratory tract infections or URTI (generally known as the common cold) than people who exercise in small amounts or recreationally.

The study was conducted among a number of elite athletes or people who maintain a hard routine of exercise and people who perform little to moderate amount of exercise. The end results were found to point to the direction that there is a relatively positive chance that high amount of exercise can link to having a bad immune system and get acute URTI symptoms.

Another study was conducted by the Loughborough University in the United Kingdom, the purpose of which was to provide a summary of how exercising affects the immune system. In the paper published after the study was conducted, it was concluded that exercising too much can, in fact, cause a temporary depression of the immune system. This effect of depression of the immune system is noticeable at its peak if the hour of exercise is prolonged more than 1.5 hours and the intensity is too high.

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Relation between URTI and Exercise Amount

In most of these studies, there appeared a common phenomenon in the relationship between the amount of exercise and the state of the immune system. It usually is depicted as a J-shaped curve. This J-shaped curve shows the relationship between amount and intensity of exercise and the occurrence or prominence of URTI incidence in the people. Those who had lower levels of URTI illness witnessed in them were usually the recreational athletes and people who maintained a moderate amount of exercise, while the substantially higher rates of URTI occurred among the elite athletes.

The following image of the J-curve is taken from a study conducted and published in 1994, and it depicts the relationship between Risk of URTI and Amount and Intensity of Exercise as follows:

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j-curve

    Graph source

    As you can see, it depicts that the way to keep the immune system from any kind of dangerous levels of harm is by pursuing a moderate exercising lifestyle. Whereas, it can be seen that sedentary amount and intensity of exercise, as in those who do too little exercise of lower intensity also possess a threat to their body’s immune system. Likewise, a workout of high intensity and consisting of a longer period of time can be equally, if not more, harmful to the immune system and the body in general.

    Some may argue that this being a graph from a study performed way back in time might not be fully correct, given the fact that recent studies have emerged. But despite slight differences, all studies related to this topic the relationship between of exercise and harm to immune system mostly provides the same conclusion as has been drawn in this article. If all their finding were to be taken and recreated as a graph or a pictorial edition, no doubt the end result would look somewhat similar to the one shown above.

    The Verdict

    Moderation is the key. Exercise too little, and you have the potential danger of making your body unfit, as well as being known as a couch potato. Exercise too much, on the other hand, and you really do have the potential danger of harming your immune system and in turn, your body.

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    So learn to recognize your body’s signals and gut intuitions. Know when your body can’t take it anymore and give it, and yourself, some well-deserved rest.

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    Last Updated on January 3, 2020

    The 10 Essential Habits of Positive People

    The 10 Essential Habits of Positive People

    Are you waiting for life events to turn out the way you want so that you can feel more positive about your life? Do you find yourself having pre-conditions to your sense of well-being, thinking that certain things must happen for you to be happier? Do you think there is no way that your life stresses can make you anything other than “stressed out” and that other people just don’t understand?  If your answer is “yes” to any of these questions, you might find yourself lingering in the land of negativity for too long!

    The following are some tips to keep positive no matter what comes your way. This post will help you stop looking for what psychologists call “positivity” in all the wrong places!  Here are the ten essential habits of positive people.

    1. Positive people don’t confuse quitting with letting go.

    Instead of hanging on to ideas, beliefs, and even people that are no longer healthy for them, they trust their judgement to let go of negative forces in their lives.  Especially in terms of relationships, they subscribe to The Relationship Prayer which goes:

     I will grant myself the ability to trust the healthy people in my life … 

    To set limits with, or let go of, the negative ones … 

    And to have the wisdom to know the DIFFERENCE!

     2.  Positive people don’t just have a good day – they make a good day.

    Waiting, hoping and wishing seldom have a place in the vocabulary of positive individuals. Rather, they use strong words that are pro-active and not reactive. Passivity leads to a lack of involvement, while positive people get very involved in constructing their lives. They work to make changes to feel better in tough times rather than wish their feelings away.

    3. For the positive person, the past stays in the past.

    Good and bad memories alike stay where they belong – in the past where they happened. They don’t spend much time pining for the good ol’ days because they are too busy making new memories now. The negative pulls from the past are used not for self-flagellation or unproductive regret, but rather productive regret where they use lessons learned as stepping stones towards a better future.

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    4. Show me a positive person and I can show you a grateful person.

    The most positive people are the most grateful people.  They do not focus on the potholes of their lives.  They focus on the pot of gold that awaits them every day, with new smells, sights, feelings and experiences.  They see life as a treasure chest full of wonder.

    5. Rather than being stuck in their limitations, positive people are energized by their possibilities.

    Optimistic people focus on what they can do, not what they can’t do.  They are not fooled to think that there is a perfect solution to every problem, and are confident that there are many solutions and possibilities.  They are not afraid to attempt new solutions to old problems, rather than spin their wheels expecting things to be different this time.  They refuse to be like Charlie Brown expecting that this time Lucy will not pull the football from him!

    6. Positive people do not let their fears interfere with their lives!

    Positive people have observed that those who are defined and pulled back by their fears never really truly live a full life. While proceeding with appropriate caution, they do not let fear keep them from trying new things. They realize that even failures are necessary steps for a successful life. They have confidence that they can get back up when they are knocked down by life events or their own mistakes, due to a strong belief in their personal resilience.

    7. Positive people smile a lot!

    When you feel positive on the inside it is like you are smiling from within, and these smiles are contagious. Furthermore, the more others are with positive people, the more they tend to smile too! They see the lightness in life, and have a sense of humor even when it is about themselves. Positive people have a high degree of self-respect, but refuse to take themselves too seriously!

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    8. People who are positive are great communicators.

    They realize that assertive, confident communication is the only way to connect with others in everyday life.  They avoid judgmental, angry interchanges, and do not let someone else’s blow up give them a reason to react in kind. Rather, they express themselves with tact and finesse.  They also refuse to be non-assertive and let people push them around. They refuse to own problems that belong to someone else.

    9. Positive people realize that if you live long enough, there are times for great pain and sadness.

    One of the most common misperceptions about positive people is that to be positive, you must always be happy. This can not be further from the truth. Anyone who has any depth at all is certainly not happy all the time.  Being sad, angry, disappointed are all essential emotions in life. How else would you ever develop empathy for others if you lived a life of denial and shallow emotions? Positive people do not run from the gamut of emotions, and accept that part of the healing process is to allow themselves to experience all types of feelings, not only the happy ones. A positive person always holds the hope that there is light at the end of the darkness.  

    10. Positive person are empowered people – they refuse to blame others and are not victims in life.

    Positive people seek the help and support of others who are supportive and safe.They limit interactions with those who are toxic in any manner, even if it comes to legal action and physical estrangement such as in the case of abuse. They have identified their own basic human rights, and they respect themselves too much to play the part of a victim. There is no place for holding grudges with a positive mindset. Forgiveness helps positive people become better, not bitter.

    How about you?  How many habits of positive people do you personally find in yourself?  If you lack even a few of these 10 essential habits, you might find that the expected treasure at the end of the rainbow was not all that it was cracked up to be. How could it — if you keep on bringing a negative attitude around?

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    I wish you well in keeping positive, because as we all know, there is certainly nothing positive about being negative!

    Featured photo credit: Janaína Castelo Branco via flickr.com

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