This study only included "around a dozen" vapers, but I've done my own study on the subject.
Since I've been doing chemotherapy, a treatment that is known to damage the immune system, I decided to vape while receiving treatment.
The result was that my immune system was surprisingly strong while the control group was statistically weakened.
While their study suggests that "The flavorings that seemed to have the most potent gene-altering effects were additives that taste like cinnamon...." My ADV (All Day vape) is a DIY cinnamon.
That's my story & I'm sticking to it.
Even assuming they found some deviation, how did they isolate other environmental factors? And if smokers, that they didn't already exhibit these changes previously? I find it odd all the multitude of gene changes simultaneously. No scientific study this. I echo the positive remarks of previous posters. Improved my life.
Good luck all.