The full 1hr documentary is also on youtube. This is a small part of it with a little discussion at the end. I highly recommend taking a look.
I can't get the link to work. It is called vaping: Dr Mchael Mosley on the One Show 19/05/16
I can't get the link to work. It is called vaping: Dr Mchael Mosley on the One Show 19/05/16