mental health...so now vaping makes you crazy?
Just the opposite:
Hidden Benefits Of Nicotine on The Brain
ADHD: There is evidence dating back to the 1990s suggesting that nicotine may be useful for treating various symptoms of ADHD (attention-deficit hyperactivity disorder).
Antidepressant: Nicotine has been well-documented as eliciting antidepressant effects in both humans and animals.
Anxiolytic: It is known that nicotine also can decrease levels of anxiety in humans and animals.
Cognitive enhancement: Nicotine has been well-documented for its ability to enhance cognitive function and overall performance.
Neurodegenerative diseases: There is mounting evidence to suggest that nicotine may not only prevent development of various neurodegenerative diseases (e.g. dementia), but it may help treat symptoms among those that are already suffering from neurodegeneration. A study published in the year 2000 suggested that nicotinic receptors should be studied for their influence on CNS functions, specifically related to Alzheimer’s and Parkinson’s disease.
Neuroprotective agent: Evidence has been suggesting since the 1990s that nicotine may protect the brain from neurodegenerative diseases like Parkinson’s and Alzheimer’s.
Performance enhancement: Many people use nicotine as a performance enhancing drug, whether it be cognitively, physically, or a combination of both.
Relaxation: Many smokers claim that having a cigarette “relaxes” them. To those that are aware of the stimulatory properties of nicotine, this may sound like nonsense. However, nicotine appears to provide calming effects in a number of ways, including via modification of neurotransmitter levels, particularly dopamine and serotonin.
Schizophrenia: Those with schizophrenia often have severe cognitive deficits or impairment. It is widely established that many individuals with schizophrenia self-medicate with nicotine. One reason for such self-medication is that nicotine may help ameliorate the
cognitive symptoms of schizophrenia, improving a person’s ability to learn, remember, and function.
There's more... and with the links to the mainly ncbi.nlm.nih.gov studies.