tobacco quay wapping lane london Dock Aerial views Aerial view of

Recent evidence suggests that long-term exposure to PM2.5 may make the coronavirus more deadly

"Ensure that youre fully hydrated while you exercise as this will help to loosen any congestion and mucus so its easier to cough up

Main image courtesy of Seagers, with thanks.

Abbreviations AHR: Adjusted hazard rate ASH: Action on Smoking and Health AOR: Adjusted odds ratio ARR: Adjusted risk ratio CI: Confidence interval COPD: Chronic obstructive pulmonary disease EC: Electronic cigarette eCO: Expired carbon monoxide eNO: Expired nitric oxide EPA: Environmental Protection Agency HRCT: High-resolution computed tomography NHIS: National Health Interview Survey PATH: Population Assessment of Tobacco and Health PICO: Population, intervention, comparator, outcomes PRISMA: Preferred Reported Items for Systematic Reviews and Meta-Analyses RCT: Randomized controlled trial VERITAS Study: The Vaping Effects: Real-World International Surveillance Study WHO: World Health Organization References National Academies of Sciences E, Medicine (2018) Public health consequences of E-cigarettes

put in the pudding, and bake half an hour