As such, we cannot draw an exact comparison between the two
What they are is *relatively* harmless compared to lit tobacco, which is not only a perfectly valid piece of objective assessment based on the evidence we have, and the materials science we know extremely well (although in a slightly backhanded way e-cigarette use long term might be like losing the tips of all your fingers, whereas smoking is like being run over a series of articulated lorries, that are on fire, such is the massive harm smoking does) but that relative harm *is* the actual important point
Most are honest and dedicated health professionals who were duped by profit-driven agendas and misled by sham research which pretends that NRT studies were blind, that nicotine addicts with lengthy quitting histories won't quickly notice the presence or absence of full-blown withdrawal
Another study reported that changes in the cardiovascular central and peripheral components occur immediately after hookah smoking and include increases in HR, blood pressure, and after occlusion vascular resistance, whereas after occlusion blood flow and outflow were decreased [172]
95% CI = 1.814.0) 42
Essential oils can be added to carrier oils, lotions, salves, soaps, massage oils, bath salts, or used in an aromatherapy diffuser