One of the major risks of vaping is dehydration. Due to the content of VG and PG in vaping fluids, inhaling vapor can lead to the dehydration of the mouth and throat. Furthermore, the vapor inhaled is usually very warm, which can cause a series of issues related to dehydration. It is recommended that vapers stay hydrated on a regular basis, as becoming dehydrated can lead to a variety of health issues, including headaches, tiredness, and dizziness. Additionally, proper hydration can help improve the flavor of any e-juice.