NIH funded studies show damaging effects of vaping, smoking on blood vessels National Institutes of Health (NIH) E Cigarettes Vape Pen Starter Set VapeMaster H2 Kit, Dual Vape Pens, Easy Top Fill Cartridge, Long Lasting Battery, Pure Vapor No E Liquid, No Nicotine : Amazon.co.uk: Electronics & Photo Electronic Cigarette Fashion E Cig St10 s Battery E Cigarette Starter Kits The Vape Shop E cig Mail Electronic Nicotine Delivery Systems (ENDS), including e cigarettes and vapes, are often perceived as a safer alternative to traditional tobacco. But is the evidence really supporting this belief? A recent umbrella review published