Toxic Metal Levels Found in Marijuana Users' Blood and Urine

A study conducted by Columbia University found that marijuana users may have elevated levels of lead and cadmium, two heavy metals associated with long-term health issues, in their blood and urine. The research showed that marijuana users had 27% higher blood lead levels and 22% higher cadmium levels compared to non-users. Cannabis plants can absorb heavy metals from soil, and these contaminants can end up in the human body. Lead exposure can lead to developmental and behavioral problems in children, while chronic exposure in adults increases the risk of high blood pressure, heart problems, and kidney damage. Cadmium is considered a human carcinogen and can cause kidney disease and fragile bones. The study highlights the need for standardized rules and testing for contaminants in marijuana products.