Its the enemy, says William Danby, MD, a dermatologist with Dartmouths medical school in New Hampshire
when it is inhaled in cigarette smoke, it is absorbed into the bloodstream, and when it reaches the brain it stimulates the production of a number of neurotransmitters
Prevalence of Past 30-Day Use of Tobacco Products, 1998-2022 Cross-sectional analyses indicate that past 30-day cigarette smoking, cigar use, and smokeless tobacco use have decreased both substantially and significantly since 1998 (see Table 2)
Cigarette packaging goes back to the 19th century
When receptor proteins on limbic system nerve cells are exposed to high levels of dopamine neurotransmitter molecules for prolonged periods of time, the nerve cells turn down the volume of the signal by lowering the number of receptor proteins on their surfaces