California Proposition 65 warning applies to smokable products: smoke from combustion of plant material contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm
But as mentioned, the severity of headaches during the withdrawal phase is only temporary
(No wonder the concept was revisited in the X-Files comics.) The thing is, we still aren't quite sure which accounts we can trust
New CDC report provides first analysis of lung injury deaths associated with use of e-cigarette, or vaping, products (October 28, 2019) What are the respiratory effects of e-cigarettes (Clinical Review in the British Medical Journal, September 2019) What the FDA is and is not talking about doing now (UCSF, September 13, 2019) FDA: Trump Administration Combating Epidemic of Youth E-Cigarette Use with Plan to Clear Market of Unauthorized, Non-Tobacco-Flavored E-Cigarette Products (September 11, 2019) FDA investigating reports of 127 seizures after vaping (August 2019) Federal Court Sets 10-Month Deadline for E-Cigarette Makers to Apply to FDA to Keep Products on the Market (July 2019) WHO says e-cigarettes, smoke-free products do not help reduce cancer (July 2019) Where does e-cigarette regulation stand today