How Does Pollution Impact Our Brains?

How Does Pollution Impact our Brains

Pollution in all kinds of forms including air, water, land, and noise will damage to our health and lungs, even lead to more bad effects. Many people know that exposing to pollution will increase our risk of getting asthma, throat inflammation, skin irritation, even lung cancers and hearing diseases.

Besides affecting our physical health, pollution can also damage our brains as well. Read on to learn more about the impact of air and noise pollution.

Impact Of Air Pollution On Our Brains

Increase the chance of getting ADHD

First of all, air pollution can increase the chance of getting ADHD (attention deficit hyperactivity disorder) symptoms in children.

We can easily see a picture with a lot of cars running on the street, especially during rush hours. These cars run on diesel engines, which will then emit a great amount of exhaust gas. If we can look further, we can find a lot of ultrafine particles from the exhaust. These particles are really small- 100 times smaller than the diameter of a hair.

Increase the chance of getting ADHD

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And since they are so small, they can enter easily and find their ways to the front part of our brains. This mainly happens in the olfactory area.

Today, there is a significant increase of these particles in our brains, especially in our children’s. Thus, it leads to a rise in the number of symptoms of ADHD. For example, it is more difficult for ADHD children to be concentrated and focus. And they tendency to get nervous more quickly.

There is a study from the Center for Research in Environmental Epidemiology in Spain. It shows that in places where there are more ultrafine particles (also known as the place which is more polluted), children showed more significant evidence of ADHD symptoms.

In polluted areas, scientists also find amyloid beta plaques in the children’s brains. It will lead to developmental disorders such as autism and lower IQ.

The old people gets Alzheimer’s and Parkinson disease more easily

Secondly, older people who are exposed to polluted air are more vulnerable to Alzheimer’s and Parkinson disease.

Another research has touched on the topic of air pollution and its impact on brain diseases such as Alzheimer’s.  It showed that the risk of getting this disease increase by 100% if people inhale a small amount of polluted air every day.

The old people gets Alzheimer’s and Parkinson disease more easily

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As I mentioned above, with a lot of transports running on the street, a number of pollution particles also increase dramatically. These particles contain heavy metal neurotoxins which can damage the neurons in our brains gradually.

Moreover, our body also responses immediately upon contact with these toxins and then creates an excessive amount of amyloid-beta plaques as a result. You may commonly see these plaques in a pre-Alzheimer’s condition.

Impact Of Noise Pollution On Our Brains

Noise pollution is notorious for damaging our heart and hearing capacity. Further, it can affect our brain severely as well.

Noise pollution is proved to hinder cognitive development and functions in both children and adult.  Researches are showing that children who live near airport areas and road traffic have a lower level of reading comprehension. They tend to have a shorter term of memory and can learn how to read at an older age than children who live in a quiet neighborhood.

Impact Of Noise Pollution On Our Brains

Image source: Natural Society

Likewise, it will lead to lower performance levels and concentration loss, which are indicators of malfunction in our brains.

Besides that, facing this kind of pollution on a daily basis will make us more stressed and anxious. Developing noise annoyance will bring us uncomfortable feelings all day long, hence affecting our mental health in the long run.

Impact Of Mercury And Lead In Various Kinds Of Pollutions

Mercury and lead are two most common and dangerous chemicals which can cause pollution in air, water, and land. Therefore, when we live in an area with a dirty water source, a filthy land, or near a crowded road, the chance that we are exposed to mercury and lead is very high.

These both chemicals are adamant and powerful neurotoxins. They can destroy and damage the functions of all of the organs in our body, including the brain.

When we drink, eat fish or vegetables, or inhale a large amount of mercury, it affects our brain and all functions of the brain such as cognitive thinking, memory, and language.

Also, absorbing a large amount of Lead will guide to difficulty in verbal memory and verbal fluency. This is especially harmful to younger children. They cannot develop proper abstract reasoning as well as cognitive ability. Lastly, lead also contributes to the lower level of IQ.

Pollution contributes to the lower level of IQ

Image source: Infonet

The negative impacts of pollution on our brains are so significant that we all should be aware of as well as take steps to fix and prevent before everything is too late.

To reduce the impact of pollution on our brains, we need to reduce the level of pollution. It is a big issue with a lot of actions that requires everyone on a global scale.

Meanwhile, you should do your best to keep the environment around you clean and stay away from the polluted areas as much as possible.

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