You do understand that science has come a long way since the...

You do understand that science has come a long way since the 1950s? If cigarettes were a new thing today, they'd know very quickly that they were dangerous simply by testing the levels of dangerous chemicals in the body of smokers. These tests are revealing that levels of dangerous chemicals in vapers are no different to people breathing normal air.

But i know you're a science denier except when it suits your politics so i won't bother to reply further