Fact
Nicotine in vapes can weaken the immune system.
Source 1:
Chaturvedi, P., Mishra, A., Datta, S., Sinukumar, S., Joshi, P., & Garg, A. (2015). Harmful effects of nicotine. Indian Journal Of Medical And Paediatric Oncology, 36(1), 24.
Source 2:
Clapp, P., Pawlak, E., Lackey, J., Keating, J., Reeber, S., Glish, G., & Jaspers, I. (2017). Flavored e-cigarette liquids and cinnamaldehyde impair respiratory innate immune cell function. American Journal Of Physiology-Lung Cellular And Molecular Physiology, 313(2), L278-L292.