
Marijuana is a psychoactive drug that affects the brain by altering neurotransmitter availability and receptor activity. Neurotransmitters are chemical messengers that help transmit signals between nerve cells, and drugs like marijuana can affect their availability. As a result, the brain’s functions are altered, as it adjusts to changes in neurotransmitter availability and receptor activity. Addiction specialists from Kingsway Recovery in Gloucester County suggest that marijuana use can also alter the reward system in the brain which could lead to addiction.
A 2015 study in mice showed that marijuana use can scramble neuron signals, and that certain neurons can be impaired as a result. This could cause the brain’s reward system to become dysfunctional and potentially lead to psychosis, increased appetite, and other effects. In particular, adolescent marijuana use is thought to affect the development of certain areas of the brain which could have detrimental effects on memory and concentration. The exact way in which marijuana alters brain activity isn’t fully known yet, but there are many potential effects associated with its use.
A 2013 study of adolescent marijuana users found that heavy users had functional brain changes in certain brain areas, including reductions in gray matter and structural changes to the brain. Another study from 2017 looked at young men with a high genetic risk for substance abuse and found that marijuana use was associated with alterations in cortical regions of the brain. It is thought that these changes may indicate a greater vulnerability to addiction or mental health issues later on. Adolescent marijuana use has also been linked to lower IQ scores and poorer educational performance. With all this evidence, it is clear that there are significant potential risks associated with adolescent marijuana use that must be taken into account when making decisions about its recreational use.

The main way in which marijuana alters brain activity is through the main psychoactive ingredient in the plant, tetrahydrocannabinol (THC). THC acts on specific cannabinoid receptors located throughout the brain and body, stimulating dopamine neurons and altering neurotransmitter levels. Chronic marijuana use has been found to cause brain changes such as perineuronal nets that can decrease GABA signals and increase excitatory neurotransmitters. This can affect how information is processed in the cortex of adolescent users. Additionally, synthetic cannabinoids have become increasingly available and their effects on the developing brain are still largely unknown but could be even more damaging than those of traditional cannabis products. In conclusion, it is clear that marijuana use has a direct effect on dopamine neurons and neurotransmitter levels which can lead to significant changes in how information is processed by adolescent brains; therefore it should be treated with caution due to its potential for harm.
Marijuana alters brain activity primarily through THC, which acts on cannabinoid receptors in the brain and nervous system. These receptors are found throughout the brain and are responsible for healthy communication between neurons; when THC binds to these receptors it can affect how the brain works and how it interprets information. This disruption in proper dopamine activity can lead to changes in thinking, memory, judgement, impulse control, mood regulation and learning capacity; all of which can be detrimental if drug use is not monitored properly. It is therefore important to be aware of how marijuana affects the brains of adolescents and to ensure that any use of this drug is done so responsibly.