# How Cannabis Affects the Body: A System-by-System Overview | Weed Wonderland

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     March 09, 2026   by Weedwonderland   3 minutes   

# Cannabis Effects on the Body

  

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- Weed and health

   

When using cannabis, users tend to breathe in more deeply and hold their breath longer to get as much of the smoke into their lungs as possible. This may lead to an increase in contact with irritants and toxic chemicals inhaled into the lungs. However, the connection between cannabis smoke and lung cancer has not been established as clearly as the connection between tobacco smoke and lung cancer.

 

There are alternative ways to consume cannabis without having to go through the process of burning the plant. Some include vaporizing, oils, tinctures, and [edibles](/product-category/edibles/). These alternatives allow consumers to avoid the combustion of cannabis and therefore reduce the amount of stress put on the lungs during inhalation.

 

## Cannabis Effects on Body Systems

  

| **Body System** | **Short-Term Effects** | **Possible Long-Term Considerations** |
| --- | --- | --- |
| Respiratory System | Coughing Irritation to the back of the throat when smoked | Chronic cough Airway irritation |
| Cardiovascular System | Increase in heart rate Blood pressure changes | Risk increases for users with cardiovascular conditions |
| Metabolism | Increased hunger Altered insulin sensitivity | Risk of imbalance in weight and metabolism |
| Digestive System | Reduction in nausea Increased hunger | Effects vary on digestion and gastrointestinal disorders |
| Nervous System | Changes in mood and perception Coordination changes | Risk of negative effects on users who are already susceptible or predisposed |

  

## Effects of Cannabis on Health: Cardiovascular Effects

 

Typically, marijuana can cause the user’s heart rate to significantly increase and can alter blood pressure levels for several hours post-consumption. In most cases, the rapid heart rate associated with marijuana use is merely uncomfortable for users with no underlying medical conditions. However, for individuals with pre-existing heart disease, circulatory problems, etc., the increased heart rate and blood pressure fluctuations could potentially create a hazardous situation during the first few hours post-consumption.

 

As some people have said after experiencing a problematic time with marijuana:

 

“The high was fine, however I am more afraid of my racing heart than the high itself.”

 

## Metabolic and Digestive Impact

 

One of the most well-known characteristics of marijuana is the ability to stimulate intense hunger in many users. There appears to be a relationship between regular use and higher rates of obesity. However, there is a significant difference in the relationship of regular use and higher rates of obesity due to the fact that this relationship is far from direct.

 

On the other hand, cannabis and its constituents appear to have positive effects on the digestive system, including:

 

- reducing nausea and vomiting;
- increasing appetite;
- modifying gut motility and pain perception.

 

## Therapeutic Value of Cannabis and Its Effects on the Body

 

- **Products that are high in CBD** – minimal or mild psychoactivity; commonly used to treat anxiety, inflammation, and certain types of pain.
- **Products that are high in THC** – strong psychoactivity; commonly used to treat pain, hunger, and spasm; also have a greater risk of adverse effects when overused.
- **Products that are balanced in THC and CBD** – smooth profile; commonly referred to as more “controlled” and easier to manage.

 

## Learn More About Our Premium Cannabis

 

To evaluate the potential therapeutic value of cannabis in a controlled environment, product quality and clarity regarding THC/CBD content are critical components.

 

At Weed Wonderland, we provide [quality weed strains at flowers](/product-category/thc-flowers/), vapes, and ready-to-use products with fast delivery across the UK.

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