Vaping is as dangerous for the heart as traditional cigarettes.
A new study has found that vapers could be exposed to gases found in cleaning products, paint and vehicle exhausts and indicate that it has similar health risks to conventional smoking.
The report's author Dr. Sana Majid, of Boston University, said: "Our findings demonstrate that pod-based e-cigarette use had long and short-term effects on the vascular system in healthy young adults, including in those who have only smoked e-cigarettes and have never smoked combustible cigarettes.
"These results indicate that e-cigarettes release chemicals that are toxic to blood vessels, and the use of pod-based e-cigarettes may be associated with harm."
The research included adults aged between 18-45 without cardiovascular disease or other health risks such as Type 2 diabetes or high cholesterol.
The findings showed that vaping causes changes in blood vessel health in a similar manner to traditional cigarettes.