Cannabis side effects
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Common Physical Side Effects of Cannabis Use
Cannabis use is linked to a range of physical side effects. Regular users may experience respiratory problems, such as chronic cough and impaired lung function, especially when cannabis is smoked Hall2013Hall2009Chandy2023+3 MORE. Cardiovascular issues, including increased heart rate, risk of heart attack, and other complications like ventricular tachycardia and sudden death, have also been reported Hall2013Hall2009Wolff2013+3 MORE. Gastrointestinal symptoms are common and can include nausea, vomiting, diarrhea, abdominal pain, and, in rare cases, more severe conditions like adult intussusception and hyperemesis syndrome Senderovich2024Breijyeh2021.
Mental Health and Cognitive Side Effects
Cannabis use can negatively impact mental health. Acute effects may include anxiety, panic attacks, and psychotic symptoms, which are reported by a significant portion of users Wolff2013Cohen2019Thomas1996+1 MORE. Regular use, especially starting in adolescence, is associated with a higher risk of developing psychotic disorders, such as schizophrenia, and can worsen existing mental health conditions Hall2013Hall2009Cohen2019+2 MORE. Cognitive impairment, including problems with memory, attention, and learning, can persist even after stopping use, particularly in long-term users Hall2013Hall2009Cohen2019+1 MORE.
Dependence and Withdrawal
Cannabis can lead to dependence, with users developing a need to continue using the drug despite negative consequences Hall2013Hall2009Wolff2013+3 MORE. Withdrawal symptoms, such as anxiety, depressed mood, and sleep difficulties, may occur when heavy users stop using cannabis Wolff2013Cohen2019Breijyeh2021.
Impact on Adolescents and Psychosocial Development
Adolescents are particularly vulnerable to the adverse effects of cannabis. Regular use during this period can interfere with psychosocial development, leading to poorer educational outcomes, increased risk of mental health disorders, and social problems Hall2013Hall2009Chandy2023+2 MORE.
Risk of Accidents and Impaired Driving
Cannabis impairs motor coordination and reaction time, increasing the risk of motor vehicle accidents Hall2009Chandy2023Hall1998. This is a significant public health concern, especially among young users.
Other Notable Side Effects
Chronic cannabis use has been associated with reduced fertility, tolerance, and, in some cases, increased risk of certain cancers and lung disease Chandy2023Breijyeh2021. There are also reports of cannabis toxicity, particularly in children, which can result in severe neurological symptoms .
Conclusion
Cannabis use is associated with a variety of side effects affecting physical health, mental health, and cognitive function. The risks are higher with regular, long-term use and when use begins in adolescence. While some people perceive cannabis as relatively safe, evidence shows that it can cause significant harm, especially in vulnerable populations. Awareness of these side effects is important for making informed decisions about cannabis use and for guiding safe prescribing practices.
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