Is Long-Term Cannabis Use Harmful or Beneficial? Unraveling the Mystery


The debate surrounding the long-term effects of cannabis use is complex and multifaceted. With increasing legalization and medical use, understanding these effects is more crucial than ever. Harvard Health and other renowned institutions have delved into various aspects of cannabis use, revealing both potential harms and benefits.

One significant finding from Harvard Health suggests that long-term cannabis users may experience an average IQ decline of 5.5 points since childhood. This decline is accompanied by deficits in learning and processing speed, especially in those who use cannabis more frequently. However, it’s important to consider whether these cognitive impairments are directly caused by cannabis use or if other factors are at play.

Conversely, cannabis is widely used for pain treatment, the most common reason cited by many Americans for using cannabinoid-containing products. Interestingly, Harvard Health also discusses how a cannabis placebo can provide similar pain relief, raising questions about the actual efficacy of cannabis in pain management.

Harvard Staff Writer Alvin Powell, in a 2020 article, highlights the paradox of marijuana’s widespread public use and the medical community’s limited understanding of its effects. The legal definition of marijuana, as a cannabis plant with more than 0.3% THC, differs from hemp, which contains less THC and is less likely to produce intoxication. This distinction is crucial in discussions about the drug’s effects and legality.

Concerns are also raised about marijuana’s impact on reward processing and mental health. Studies indicate that early THC exposure may alter reward perception in the brain, potentially leading to issues with psychosis and schizophrenia, especially in individuals with a family history of these conditions.

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On the positive side, studies like the one conducted by JCI Insight in 2017 highlight cannabis’s potential benefits, such as lowering blood pressure and reducing inflammation. Furthermore, medical marijuana is increasingly recognized for its effectiveness in chronic pain management, particularly in older populations.

However, the effects of cannabis on developing babies during pregnancy remain under-studied and not widely publicized. The potential risks to memory formation, as THC affects brain regions crucial for memory, are also a concern, particularly with long-term use.

In conclusion, while the benefits of cannabis, such as pain relief and inflammation reduction, are recognized, the potential cognitive impairments and mental health risks cannot be overlooked. The question remains: is long-term cannabis use more harmful or beneficial? More research is needed to fully understand the complexities of cannabis effects on the human body and mind.

Is Long-Term Cannabis Use Harmful or Beneficial? Unraveling the Mystery

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