Chronic E Cigarette Use Impairs Endothelial Function on the Physiological and Cellular Levels Arteriosclerosis, Thrombosis, and Vascular Biology The safest vape is the one you never start. Flavoured vapes were designed to feel harmless: Candy taste. Fruit smell. Cool packaging. Viral aesthetics. But your lungs don't care about the flavour. How does e cigarette vapor alter the gut microbiome, body weight, and systemic inflammation levels? The Mysterious Vaping Illness That's 'Becoming an Epidemic' The New York Times