A new study in JAMA reports that among people who smoke a pack of cigarettes a day for 20 years, the risk of cardiovascular disease returns to that of a nonsmoker for 10-15 years after quitting. Here’s what this means for PM2.5 in outdoor air. I have covered this issue before here and in Scare … Continue reading More real-world evidence that PM2.5 in outdoor doesn’t kill

via JunkScience.com

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August 20, 2019 at 04:02PM