[5] Many substances in cigarette smoke, chiefly nicotine, trigger chemical reactions in nerve endings, which heighten heart rate, alertness [6] and reaction time, among other things
Barbiturates Barbiturates are sedatives commonly prescribed to treat sleep disorders such as insomnia
Compromised Oxygen Exchange: Smoking damages lung air sacs (alveoli) and reduces oxygen levels in the bloodstream, leading to reduced exercise tolerance
These steps help lift surface stains while protecting your enamel and gums
Nicotine is one of the most addictive substances known to science, harder to quit than alcohol or caffeine and just as powerful as drugs most people consider hard. Big Tobacco has spent decades exploiting that power, disguising it behind flavors, devices and branding, but understanding the truth about nicotine is the first step to breaking its hold for good