Scientists now say that vaping affects blood vessels within minutes, even including nicotine-free vapes. Experts warn these changes could lead to long-term health problems, like blood clots, heart attacks and strokes. The ingredients in vapes may also cause inflammation affecting the entire body.

While many people believe e-cigarettes to be less harmful than cigarette smoking, new research from the University of Pennsylvania reports vaping may be just as detrimental to vascular function and overall health as regular cigarettes.

Decreased venous oxygen saturation was also present in vapers whether or not the e-cigarettes contained nicotine.

New study reveals vaping and smoking's immediate effects on vascular health, challenging safety claims of e-cigarettes.