How Cannabis Influences Our Brain In Negative Ways

How Cannabis Influences Our Brain In Negative Ways

Are you addicted to cannabis? Do you know that cannabis habit can actually be harmful to your body and brain? How does it possibly affect you? Are you wondering what are the negative effects of cannabis? We'll learn about how cannabis influences our brain in this article.

Warning: This article focuses on cannabis abuse, not cannabis for medical purposes.

Cannabis for medical purposes is completely fine. However, cannabis abuse and habit can bring harmful and damaging effects on people. The effects of cannabis might be short-term and long –term.

For your mental health, for example, regular use of cannabis might increase the risk of developing schizophrenia and delusions. The risk is higher especially if you smoke it regularly and for a long time, start using it at a young age, and/or you have a family history of those mental disorders.

Unfortunately, those are not the only risks you can get when you start getting addicted to cannabis and use it regularly.

Negative effects of cannabis

In general, cannabis habit can actually bring negative and even damaging effects, such as:

Heart Problems

In an article published by Harvard Medical School, research shows that smoking weed makes the risk of heart attack becomes several times higher.

Our heart rate can increase by 20 to 50 times more per minute, and it could be worse if used along with other drugs. As a result, the risk of heart attack increased.

Breathing problem

Smoking weed might give similar breathing problem as in those who smoke cigarettes. It can affect your lungs and as a result, it might lead to cough, pneumonia, bronchitis and lung infection.

It harms unborn baby

According to the American College of Obstetricians and Gynecologists, some researchers suggest that cannabis exposure can actually harm unborn babies since it might disrupt normal brain development of the fetus. It can also increase the risk of preterm birth.

For most people who are addicted to cannabis, they would start developing some brain-related problems. In the following, you will find a complete explanation about how cannabis can affect our brain.

It affects your brain

For most people who are addicted to cannabis, they would start developing some brain-related problems. In the following, you will find a complete explanation of how cannabis can affect our brain.

How would cannabis affect our brain?

Delta-9 tetrahydrocannabinol or THC in cannabis works on the cannabinoid receptor on nerve cells and it influences the activity of these cells. Some areas of our brain have many cannabinoid receptors. However, the other areas might have a little or even nothing.

Some of the cannabinoid receptors can be found in parts of our brain which affect memory, sensory perception, concentration, movement coordination, mind, and pleasure.

When someone consumes high-dose cannabis, some symptoms such as hallucinations, delusions, disorientation, and damage to memory will occur as it affects the cannabinoid receptors.

Brain Fog

Brain fog, also known as clouding of consciousness, is one of the common negative effects of cannabis which can occur to people who use cannabis. It is basically a non-clinical term to describe a collection of symptoms such as mental confusion, poor memory, short attention span, and more.

How Cannabis Influences Our Brain - brain fog

What Are Brain Fog Symptoms?

Here are some brain fog symptoms in general:

  1. Difficulty in thinking clearly.
  2. Short attention span and inability to concentrate.
  3. Inability to process information properly.
  4. Poor memory.
  5. Low energy and fatigue.
  6. Mental confusion.
  7. Irritability.
  8. Disorientation.
  9. Mind-wandering.
  10. Low motivation.

How Long Does It Last?

The duration of brain fog symptoms can be different from person to person. It might last only a few hours for one person while it might take weeks or even years for others. Brain fog usually comes and goes, especially if the person still is still unable to identify the root cause of it.

However, if you have brain fog symptoms, there are still ways you can do to help reduce its duration or even prevent it from coming back.

Brain fog treatments and prevention

The best way to handle brain fog is to understand the root cause of it. For example, if you realize that the reason you get brain fog is because of cannabis, then it is best to consider as soon as possible how you are going to stop consuming it.

You should also pay more attention to the food you eat and try to exercise routinely. Try to get enough sleep, stay hydrated, and avoid stress.

What might happen once you try to stop using cannabis?

Once you realize that your cannabis habit starts causing you to experience brain fog, you might want to stop immediately. However, you might get withdrawal symptoms which can include cravings, mood swings, sleeping problems, restlessness, anxiety and irritability.

Some physical symptoms might also occur once you try to stop using cannabis, such as weight loss or gain, stomach pain, headache, tremors, sweating, fever, and shakiness.

For some people, the symptoms will not last long and it will disappear with time. However, it is important to understand that everybody is different and it is crucial to listen to your body. If it has been more than a couple of weeks and you still experience the symptoms, then it is time for you to start seeing your doctor. Remember that you are not alone, and it is okay to receive help from others.


Whilst cannabis for medical purposes is safe, cannabis abuse and habit can be harmful to our body and brain.  If we use it regularly for a long time, we will start developing mental and physical problems. Brain fog is just one of the negative effects of cannabis one can get for using it regularly.

If you are an active cannabis user and you start experiencing brain fog symptoms, it is time for you to stop. You might get withdrawal symptoms, but if it lasts longer than a couple of weeks, then you need to start seeing your doctor for help.

Quitting a bad habit is not easy, but in the end, it’s worth it.

What if I can’t stop?

Let’s say that you have tried your best to stop and see your doctor, yet you still find it difficult to stop. Or, you know what you need to do and you actually have made an action to stop the habit, but in the end, you still find yourself back to the same situation.

I got it! I understand that quitting a habit can be really challenging to a lot of people, especially when you have to do it all alone. The process can be tough, and the temptation is real.

The good news is you do not have to do it alone. You can actually talk to someone who understands your struggle and is willing to work with you and support your decision until you reach your health goal, quitting cannabis habit.

As a certified functional medicine health coach, one of my goals is to help people who are trying to quit cannabis habit to successfully achieve their health goals. I give full attention and support to all of my clients. I make sure that in the end, they can break free from the habit, and live a healthy life.

If you think it is time for you to stop cannabis habit, move forward, and live a healthy lifestyle, you can always reach out to me via email at

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