Understanding the Effects of Marijuana on Our Bodies

Marijuana has been a topic of ongoing debate and research, often surrounded by misconceptions about its health impacts and safety. Many individuals turn to cannabis seeking relief for various health conditions or for recreational purposes, but scientific studies reveal a complex picture of its effects on the body.

One common myth is that marijuana smoke is less harmful than cigarette smoke. However, research indicates that any form of smoke inhalation is detrimental to respiratory and cardiovascular health. Marijuana smoke contains harmful substances such as benzene, formaldehyde, and heavy metals, which can contribute to diseases like heart disease and worsen conditions like asthma.

Another misconception is that edibles are a safer alternative to smoking. While edibles avoid lung exposure, they carry risks of overdose due to delayed effects. Since it takes longer for edibles to produce noticeable effects, users might consume more, leading to severe anxiety, panic attacks, vomiting, and even emergencies.

Long-term use, particularly via smoking, can impact cardiovascular health by impairing blood vessel function. Studies show that chronic cannabis use can cause endothelial dysfunction, which is an early indicator of cardiovascular diseases such as hypertension and atherosclerosis. Interestingly, even edible-only users may experience vascular issues, although through different mechanisms.

Adolescents are especially vulnerable, as their brains continue to develop until about age 25. Heavy marijuana use during adolescence has been linked to reduced brain matter and impaired decision-making abilities. The developing brain is more susceptible to lasting changes, but there is potential for recovery if use is reduced or stopped.

Concerning overdose, marijuana can induce psychological effects such as paranoia, hallucinations, and psychosis, particularly in those with a family history of mental health disorders. While not lethal like opioids, intoxication can significantly impair functioning.

Many people also believe marijuana can be an effective self-medication for mental health issues. However, current evidence is limited, and unregulated products pose risks. Medical use should be discussed with healthcare providers, as they can suggest regulated and proven treatments.

Open communication with healthcare professionals is encouraged, as many clinicians are willing to discuss cannabis use without judgment. Quitting marijuana may be challenging for heavy users, and withdrawal symptoms such as anxiety, sleep disturbances, and loss of appetite may occur. Professional support through therapies and medication can assist in overcoming dependence.

Overall, while cannabis may offer certain benefits, especially in specific medical contexts, understanding its risks is crucial. Responsible use and consultation with medical professionals can help mitigate potential harms and ensure informed decisions about marijuana use.

Source: https://medicalxpress.com/news/2025-08-marijuana-affect-bodies.html