Secondhand smoke can leave cancer-causing cadmium in the body

A new study indicates that adults exposed to secondhand smoke have significantly higher levels of the toxic metal cadmium in their blood compared to those in smoke-free environments. Cadmium accumulation is linked to serious health issues, including kidney, lung, and prostate cancers.
Why it matters
The findings highlight the persistent public health risks of secondhand smoke, even as overall smoking rates decline.
edited by Gaby Clark , reviewed by Andrew Zinin
The article summarizes peer-reviewed medical research without editorializing.
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