Greening out is a term often used with cannabis. It describes a situation where someone feels overwhelmed, anxious, or sick after using too much marijuana.
This experience is particularly common in individuals who overconsume cannabis, especially when taking edibles or using higher doses than they’re accustomed to. For some people, these uncomfortable experiences can show a deeper dependence on marijuana. This may lead to more health and mental health issues.
We’ll examine what greening out means, discuss its symptoms, and explain why it can be important to recognize the signs.
The Science Behind Greening Out
When someone consumes cannabis, the psychoactive component, tetrahydrocannabinol (THC), binds to receptors in the brain, especially in areas that regulate mood, memory, and coordination. This interaction is what causes the feeling of euphoria or a “high” that many associate with marijuana use.
However, when consumed in high doses, THC can have the opposite effect, which can lead to discomfort and physical distress. High levels of THC can overload the body, leading to symptoms like dizziness, nausea, and a faster heart rate. These reactions happen because THC activates the body’s sympathetic nervous system. This can cause physical responses like increased anxiety or a faster heartbeat.
The effects of overconsumption can vary greatly from person to person. Factors like tolerance, body chemistry, and experience with marijuana all play a role in how the body reacts. A person who uses marijuana often may have a higher tolerance. This means they might not feel sick, even after taking larger amounts.
A person who rarely uses marijuana or has a low tolerance might feel uncomfortable symptoms if they use too much. This is known as “greening out.”
Common Symptoms of Greening Out
When someone greens out, they may experience a variety of physical and mental symptoms, including:
- Nausea and vomiting
- Dizziness or lightheadedness
- Increased anxiety or paranoia
- Increased heart rate
- Confusion or disorientation
The symptoms of greening out are usually temporary. They will go away as the body processes the drug. However, these symptoms can be distressing. They may even cause panic for some people.
Why Some People Green Out
One of the primary reasons people green out is overconsuming marijuana, especially in a short period.
When someone takes too much, their body has a hard time handling the high levels of THC. This can lead to an overwhelming experience. This is often the case when people consume marijuana quickly, like smoking or vaping large amounts.
A specific risk factor is edibles, which can take longer to kick in. Since the effects take time to show, people may use more. They might not know how strong the effects will be when they start, leading to a sudden and intense greening-out episode.
Tolerance plays a significant role in whether someone will green out. People who use marijuana often or have a high tolerance for THC can usually take larger doses. They are less likely to feel the bad effects of greening out.
People with low tolerance or who don’t use marijuana often are at a higher risk of greening out. This is because their bodies are less accustomed to processing THC, and the drug can have a much stronger effect.
For some individuals, underlying mental health conditions, such as anxiety, stress, or depression, can amplify the effects of marijuana.
THC interacts with the brain’s receptors, which can lead to heightened emotional reactions. If someone is already feeling anxious or stressed, marijuana can exacerbate these feelings, leading to paranoia or extreme discomfort. This makes greening out more likely, and it can also be more intense for those who are already struggling with mental health issues.
When Greening Out Is a Warning Sign
If greening out happens often, it may mean someone is consuming too much cannabis. This could show they’re using it to deal with emotional or mental problems.
Using marijuana to cope or deal with stress, anxiety, or discomfort can lead to an unhealthy relationship with it over time. If greening out occurs often, it might be time to reflect on whether marijuana use is a way to avoid dealing with deeper issues.
If someone often experiences greening out, it may mean they are becoming dependent on marijuana. People who struggle with dependency may find it hard to control their marijuana use. They might also feel withdrawal symptoms when they try to stop. This could signal the need to assess one’s relationship with marijuana and consider seeking professional help.
Get Treatment for Marijuana Abuse and Addiction
Addressing marijuana use early can help avoid long-term issues and improve overall well-being.
Getting help for marijuana addiction is an important step. This is especially true if it affects your physical or mental health. It can lead to recovery and a healthier life.
If you or someone you know is having trouble with substance use, Alamo Behavioral Health can help. If marijuana use is becoming a problem, reach out to us for support.
We provide professional, compassionate care for those seeking to address their substance use and begin their journey toward recovery.
References:
- Centers for Disease Control and Prevention (CDC): Cannabis Frequently Asked Questions
- National Institute of Health (NIH): Harmful Effects of Smoking Cannabis: A Cerebrovascular and Neurological Perspective
- NIH: Marijuana Toxicity


