THANK YOU! After actually reading any available data, I agree this study seems deeply flawed and in no way controlled. Did the Ecig users smoke previously? Does the gene suppression go away after a day? I highly doubt it&#x27;s permanent. Did they have Ecig users who were using no flavoring? What nicotine level? What vg&#x2F;pg ratio? Most importantly in my opinion, what type of device was used and at what wattage etc.<p>Don&#x27;t get me wrong, I&#x27;m certainly happy to see testing happening, but we need to do it right and control ALL the variables.<p>Anecdotally, I was sick all the time when I smoked cigs. Switched to Ecig a little over a year ago and I haven&#x27;t had any illness beyond a normal upset stomach every now and then.