Although marijuana is being celebrated for its therapeutic benefits, its chronic use has been found to have both short- and long-term effects on your brain.
Did you know it can negatively affect your brain function across all of its lobes?
Understanding these potential impacts and seeking out ongoing research is imperative to your brain health. Read on to discover all the different areas of your brain and the adverse effects cannabis can cause. Know before you light up!

Effects on Your Brain Stem
Your brain stem is key in many areas including your sleep function, heart rate, blood pressure, balance, hearing, and digestion to name a few.
Marijuana use can cause:
- Lower blood pressure
- Lack of coordination and motor control
- Drowsiness
- Nausea and vomiting
- Faster heart rate
- Lack of sleep regulation
- Bloodshot eyes
- Sensory processing
Get Help Today.
We are here to help you through every aspect of recovery.
Let us call you to learn more about our treatment options.
We are here to help you through every aspect of recovery. Let us call you to learn more about our treatment options.
Effects on Your Cerebellum
Your cerebellum is involved in the regulation of your emotional control, cognitive functions, and motor control. Marijuana use can affect:
- Motor control and coordination
- Posture and balance
- Driving skills
- Reaction time
- Eye-hand coordination
Effects on Your Frontal Lobe
Your frontal lobe controls motor functions, language, and executive functions. Marijuana use can cause:
- Lack of coordination and motor function
- Learning deficiencies
- Impaired impulse control
- Hallucinations and delusions
- Altered judgement and decision making
- Sudden mood swings
- Lack of concentration
- Impaired executive function
Effects on Your Occipital Lobe
Your occipital lobe is integral in processing visual information. Marijuana use can cause:
- Enhanced visual sensitivity
- Distorted perceptions
- Altered visual memory
- Decreased peripheral vision
- Impaired visual processing

Effects on Your Parietal Lobe
Your parietal lobe regulates spatial processing, sensory information, and language processing. Marijuana use can cause:
- Slower reaction times
- Altered sensory perception
- Impaired spatial awareness
- Changes in attention
- Altered body awareness
Effects on Your Temporal Lobe
Your temporal lobe impacts your emotions, language, visual perception, memory, and sensory processing. Marijuana use can cause:
- Slurred speech
- Changes in auditory perception
- Impaired memory
- Impaired emotional regulation
- Impaired communication and language
- Perceptual distortions
What People Are Saying About Marijuana: Is It True?
Now let’s look at some of the commonly held beliefs about the benefits of marijuana. This is what people are saying, but is it based in fact or conjecture?
Marijuana Helps Me Sleep
While you may think cannabis is helping you sleep, it is actually disrupting the stages of sleep which help you feel more refreshed in the morning. Your quality of sleep is actually poorer.
Marijuana Helps with My Pain
Cannabis may be helping you with pain in the short-term. But in the long-term, your pain sensitivity could be increased.
Marijuana Makes Me More Creative
Many people think they have more creativity when they are high. But since your state of mind is altered, you’re not being as creative as you think you are.
Edibles are Safer
Eating edibles is just as dangerous as vaping or smoking. Edibles take longer to have an effect, but their effect can last longer and be more extreme.
Marijuana’s Dangers Outweigh Its Benefits
As more research comes to light, the dangers speak for themselves. The claims of medicinal benefit are unsubstantiated by research. In fact, as is noted above, the opposite is often the case. Now let’s look at some other adverse effects of marijuana use that are often overlooked but worthy of consideration:
- The munchies – Cannabis affects the neurons in your brain which control appetite and cause hunger. Extra calories may not be a good thing for you.
- Memory – Cannabis obstructs your working memory, which could affect your daily functioning.
- Brain development in teens – Cannabis causes a huge disruption in brain development, resulting in cognitive impairment and lower grades at school.
- Psychotic Disorders (Schizophrenia) – Heavy use, especially during the teen years, can greatly increase the likelihood of developing psychotic disorders.
- Time Awareness – Time seems to slow down when you are high. This can disrupt your promptness and awareness of time.
The Bottom Line: Get Help if You or Someone You Love is Using Marijuana
If you or someone you love is struggling with cannabis use, please reach out to a program like Sanctuary Clinics. Sanctuary’s Marijuana Cessation Program is the only Christ-centered, evidence-based cannabis use disorder treatment program in America. Don’t be fooled. Don’t let cannabis have the last word where your health, wellbeing, and future are concerned.
Get Help Today.
We are here to help you through every aspect of recovery.
Let us call you to learn more about our treatment options.
We are here to help you through every aspect of recovery. Let us call you to learn more about our treatment options.