Definitely not. The funny part of this is that, if this study continues the way that it is now, there may actually at some point be more mass of my cardiac tissue (Genetically anyway) than there is mass of me as a person. RIght now they're not growing completely new hearts, as much as they are doing proof-of-technique for muscle/conductive tissue 'patches' for people with certain kinds of weak hearts. The e-cig thing interests me (I use one semi-regularly, 0 nicotine) and I hope that the FDA thing doesn't just drive the whole thing underground or into the realm of 'not for human consumption' pseudo-drugs like K2 and bath salts. I definitely encourage people to participate in research that interests them, however I think that a person should always have a clear picture of what's going to happen to them, potential long term effects, etc. How much does a heart weigh? Surely not that much . . .