Check the format and moisture level alongside the strength before ordering a new brand
Any health benefits come from dramatic reductions in these chemicals, and were not seeing this in people that use both e-cigarettes and combustible cigarettes. And although this study found significantly lower levels of these substances in vapers than smokers, the chemicals are still there
Nicotine is the main component of tobacco and is highly addictive
It appears that smoking itself, not withdrawal, contributes to stress through nicotines effect on brain chemistry
NIST Ohlemiller TJ, Villa KM, Braun E, Eberhardt KR, Harris RH Jr, Lawson JR et al (1995) Quantifying the ignition propensity of cigarettes
Replace the stick every few weeks or when bristles wear down