Hookah smoking may seem like a relatively harmless way to spend an evening, but a new study suggests otherwise.
Just one evening of hookah smoking could make nicotine urine levels spike by more than 70 times, and also result in the increase of cancer-causing agents, according to the study published in the journal Cancer Epidemiology, Biomarkers & Prevention.
Researchers from the University of California, San Francisco, examined the urine of 55 healthy people who had used water pipes, or hookahs, before. The participants were asked to abstain from any type of smoking for one week, after which they submitted urine samples to the study researchers.
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