Health officials struggled to explain in plain language the difference between freebase nicotine and nicotine salt in vape products during a House hearing Monday, prompting sharp exchanges from lawmakers weighing possible tax Early age at smoking initiation is associated with elevated cardiovascular disease and mortality risk in a nationwide population based cohort Scientific Reports The effect of cigarette and e cigarette use on periodontal health: A cross sectional study in Eastern Province, Saudi Arabia Pros and cons of vaping The Week