Chemical in cigarette smoke may damage important aspect of vision

(Reuters Health) - Exposure to a chemical in tobacco smoke could make it more difficult for people to see in low-contrast conditions, such as low light, fog or glare, a new study suggests. Researchers found that higher levels of cadmium in the blood were associated with diminished contrast sensitivity, they report

One in three e-cigarette users are vaping daily

Roughly 10.8 million American adults are currently using e-cigarettes, and more than half of them are under 35 years old, a U.S. study suggests. One in three e-cigarette users are vaping daily, researchers report in the Annals of Internal Medicine. "Electronic cigarette use is also closely associated with other high-risk behaviors," said

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