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446 Cardiff cove | October 2018 Rios trailhead | August 2018 Inside a flower with a knob-shaped pistil and mushroom-shaped anthers | Pole road | August 2018 Human Uses Like many plants in the nightshade family, tree tobacco contains alkaloids primarily anabasine, chemically similar to nicotine

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Concerns over declining semen quality evidenced by a more than 50% drop in sperm concentration over four decades have triggered investigation into modifiable lifestyle and environmental factors

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[ 8 ] Surveys of US college students have found that approximately 40% of students have ever smoked hookah and approximately 10% have used hookah in the last 30 days