According to this article "Global reinsurers are stepping up their warnings to life insurer clients about the potential risks of vaping, putting pressure on underwriters to charge certain vapers higher rates than smokers, or even exclude them altogether."
This is a direct consequence of dozens of cases of lung disease in young people in the United States, apparently linked to vaping. The lack of sufficient objective data is a concern. Initially, indications were that vaping, if adopted by smokers, showed a dramatic reduction in disease rates. But it now seems that quality problems, and adoption by young, formerly non-smokers, could mean that vaping results in an increase in harm. Only time will tell.