Short-term and long-term side effects of cannabis on the body and brain

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Deux personnes après avoir fumé du cannabis, l'une éprouvant de la joie et l'autre un mauvais moment.
Image representing the side effects of cannabis, both physical and psychological.


What are the side effects of the herb? They are the negative effects of smoking, vaporizing, or eating marijuana, that is, those bad feelings that we can have on a psychological or physical level after consuming this medicinal plant. Everyone knows the typical psychoactive effects such as euphoria, well-being, motivation, or inspiration among others, or the physical ones such as relaxation, analgesia, antispasmodic, etc. These are the most common effects that most users feel, but there are people who do not feel the same and may feel unpleasant effects.

We have to differentiate between the consumption of cannabis rich in THC and that rich in CBD, the short-term negative effects and those that may appear after many years of consumption, just as we must distinguish between the effects of smoking and those of vaporizing or eating cannabis, so make yourself comfortable if you are interested in this topic because we are going to try to go deeper and shed light in this regard.



⭐ Negative short-term effects of weed



There are people who do not feel very good about consuming cannabis, we all know a friend who as soon as he takes 2 puffs of a joint seems like a totally different person, something like if his soul had been abducted. The bad or negative effects of marijuana can also appear at a given time in people who normally do well, because not all varieties cause the same effect or are equally powerful, because they have a temporary physical or mental problem, or even by consuming in uncomfortable moments or situations.


Short-term psychological side effects

  • Memory loss
  • Trouble thinking, reasoning, and problem solving
  • Depressive state
  • Feeling of fear
  • Hallucinations
  • Humor changes
  • Altered sense of time
  • Delusions
  • Psychosis


Harmful short-term physical effects

  • Loss of psychomotor capacity, which translates into slow and clumsy movements
  • Increase in the number of pulsations
  • Dry mouth
  • Red eyes
  • Tachycardia
  • Conjunctive irritation
  • Dry cough
  • Increase or decrease in blood pressure



⛳ Long-term effects of marijuana


The long-term effects of smoking or consuming weed in other ways can go further, but this does not happen in all people, in fact it is not yet known exactly why some people may be affected and others not. We must also differentiate between people who use sporadic use for many years, and those who smoke daily, just as one joint a day is not the same as 10. As with other drugs, people’s predisposition It is crucial in this matter, and there are pre-psychotic people in whom cannabis can trigger a mental problem that they had latent until that moment.


Long-term effects of weed on the brain

  • Loss of self-control and frequent episodes of aggression
  • Drowsiness
  • Memory loss
  • Loss of neurons
  • Psychotic episodes
  • Difficulties adapting to social tasks and relationships with other people
  • Behavioral disorders
  • Attention problems
  • Anxious-depressed withdrawal
  • Temporary hallucinations
  • Amotivational syndrome


Long-term effects of weed on the body

  • Respiratory problems (smoked or vaporized consumption)
  • Cannabinoid Hyperemesis Syndrome
  • Changes in heart rate
  • Arterial hypertension
  • Possible sterility


This does not mean that all people who use cannabis will have physical or psychological problems, in fact there are many people who use this plant regularly for many years without suffering any noticeable side effects.



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✨ Effects of smoking weed on the adolescent brain


Teenagers should not use cannabis or any other type of drug for various reasons, since they are not mature enough to make decisions for themselves, they can be easily influenced, they are in a continuous learning phase that can be affected, and above all all because they still do not have a fully formed brain. For these and other reasons, the effects of marijuana on the adolescent brain may be more negative than in adults.

  • Difficulty sustaining attention
  • Learning problems
  • Decreased short and long term memory
  • Difficulty solving problems
  • Cognitive problems
  • Hallucinations and/or panic
  • Isolation and social anxiety
  • Amotivational syndrome
  • School problems
  • Increased risk of schizophrenia
  • Increased potential for addiction



📲 Effects of marijuana on sperm


Does the herb affect the fertility of people? This is a good question that we are going to try to answer in the best way with all the data we have so far. Recently, in the year 2019, it was confirmed that the endocannabinoid system is also present in the human testicles, so it seems that the intensive consumption of grass could negatively affect the fertility of people, both men and women. So does smoking weed affect your sperm? It seems so, but then you see examples of great stoners like Bob Marley who had 12 children and this makes you think that either they were not his, or he did not smoke that much, or it may not affect everyone equally in this regard .

According to studies carried out between 2008 and 2015 with 1,215 Danish men between the ages of 18 and 28, the continued use of cannabis could decrease the quantity and quality of sperm. In this case, it was administered weekly during the last 3 months of the investigation to 45% of the participants, and it was found that in 29% of the cases the sperm count and sperm concentration were reduced. Sperm motility can also be affected, that is, the ability of sperm to reach the egg.



🎯 Side effects of vaping too much weed


A few years ago, marijuana vaporizers came to the fore after 33 people died from this type of consumption and more than 1,700 people were admitted to hospital for the same reason. This caused a small revolution in the sector because until then it had always been thought that vaporizing cannabis was healthier than smoking it. From there, the problem began to be investigated to try to discover what was the reason for that toxicity associated with the steam caused by heating the yerba to a certain temperature.


Researchers from the Johns Hopkins Medicine Institute (USA) confirmed that vaping marijuana increases short-term anxiety, distraction, memory loss, and even paranoia or other mental problems when the doses are the same in users who do not consume it frequently. One of the causes of this problem is that when weed is vaporized, it is heated to a temperature that releases a greater amount of THC, because the combustion caused in a joint or bong volatilizes a good part of this cannabinoid, which is maintained when vaporized. so the side effects of consuming THC are multiplied.


In addition to this, very little is known about vaping oils or other types of cannabis concentrates, but it is suspected that some of the ingredients used such as additives, flavor enhancers, solvents, or lubricants, among others, may be toxic or harmful when applying temperature. It is also possible to differentiate between the consumption of commercial electronic cigarettes that carry refills of cannabis concentrates and those that each one can prepare at home knowing what they contain. In the absence of more information regarding the long-term effects of the use of marijuana pens, at Pevgrow we ask all our readers to consume in moderation.



👾 Side effects of eating raw marijuana


Although it is not the most common form of consumption, more and more people are eating raw marijuana to take advantage of some of its therapeutic properties without suffering from the psychoactive effects. Raw weed contains all the cannabinoids in acid form, and instead of THC it has THCA, which does not get you high but is beneficial for treating certain ailments or illnesses. Cannabis can be eaten directly fresh or after drying, but if the process known as decarboxylation is not carried out, it will not produce the typical effect of euphoria, changes in perception, etc.

Some people eat leaves or flowers directly, but it is becoming more common to make fresh cannabis juice with the help of a juicer or similar. When ingested instead of smoked, each and every one of the components of this plant is used, making it a very interesting method from an economic point of view, but it must be borne in mind that if the intention is to feel all the medicinal or psychotropic effects must be decarboxylated before consumption.



🔥 Negative effects of stopping or quitting weed


Everyone knows that cannabis does not cause the same type of addiction as other drugs such as cocaine or heroin, but this does not mean that it does not cause withdrawal syndrome, even if it is not comparable to that of the aforementioned substances. Occasional users will hardly feel the side effects of quitting marijuana, but chronic users or people who use it daily for many years can experience a quite uncomfortable physical and psychological withdrawal syndrome that you can see below.

  • Irritability
  • Anxiety
  • Aggressiveness
  • Depression
  • Concern
  • Shaking chills
  • Trouble falling or staying asleep
  • Appetite and eating disorders
  • Uneasiness
  • Gastrointestinal disorders



🧐 Positive effects of marijuana


Like everything in life, cannabis has a good part and a bad part, and after seeing the worst consequences of consuming this plant, we are now going to see some of the beneficial effects that weed offers us. Leaving aside the playful part such as well-being, disinhibition, joy, uncontrolled laughter, etc. There are a number of positive medicinal effects that can help us improve quality of life, such as relaxation in hyperactive or nervous people, pain relief, including pain caused by nerve injuries, appetite stimulation in anorexics or chemotherapy patients, stopping and prevention of epileptic seizures, sleep conciliation, or the treatment of multiple sclerosis, Crohn’s disease or other diseases such as glaucoma.



⚠️ Conclusion


Cannabis causes short-term and long-term side effects, but it depends on the type of marijuana, the user, the use, and other factors that can aggravate them. We all know people who have consumed daily for decades and can lead a totally normal life, without showing apparent features that might make us think that it has caused some kind of physical or psychological damage, but that does not mean that everyone can do it. With this article we do not want to alarm anyone, only to inform our readers of these studies that we have found. At Pevgrow we try to promote the reduction of risks associated with consumption, especially if the intention is to use this plant for a long time.



📖 Frequent questions


Is paranoia a side effect of marijuana?

Yes, paranoia is a possible side effect especially when using marijuana with high levels of THC, but it usually occurs in people predisposed to suffer from it. The problem is that in most cases it is not known when a person may be predisposed or prepsychotic until the problem is revealed. If the first time you smoke a joint does not feel good, it is best not to continue doing it, since THC is not a substance for everyone, as is the case with alcohol and other drugs.


How to reduce the side effects of weed?

After reading this article you will have verified that the cannabinoid responsible for the majority of side effects is THC, but luckily today we have available on the market varieties of cannabis rich in other cannabinoids such as CBD, CBG, THCV or CBDV, which obviously do not They get as high as the THC-rich ones but don’t have many of its negative effects either. Cannabidiol inhibits part of these effects, and there are genetics with a ratio between THC and CBD of 1:1 or 1:2 that produce psychoactive effects but without causing tachycardia, paranoia or other problems.

Reducing the rate of consumption also obviously reduces side effects, but if you don’t want to do so, you can try strains that contain a high content of the terpene Linalool, since, among other things, it facilitates relaxation and calm. Indica strains tend to have less negative effects than sativas, as do mostly indica hybrids.



Cannabis (Marijuana) DrugFacts What are the effects of marijuana? Long-term
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– Vaping cannabis produces stronger effects than smoking it in infrequent users
– Vaping and marijuana: the dangerous problem facing health authorities

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Fran Quesada Moya
Fran Quesada Moya

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