Long-term data on their effect on health are also lacking ... the need to help people fully understand their biological responses to nicotine and how behaviours feed into addiction.

Nicotine may lead to many side effects. One of these involves getting ... There are several biological mechanisms through which this may occur. Other chemicals found in these products may also ...

Nicotine, a major component of tobacco smoke, could exert either nonreceptor-mediated biological effects or, more importantly, act on the different subtypes of nicotinic brain receptors ...

Conflicting effects of nicotine on the major orexigenic peptide, neuropeptide Y (NPY), have been observed in the brain, but the effects of smoking are unknown. Thus, we aimed to investigate how ...

These products are generally safer than cigarettes because they do not burn tobacco, and it is tobacco smoke, not nicotine, that causes most of the harmful effects of cigarettes. FDA estimates ...