Caffeine, by a wide margin. Caffeine is the most commonly used psychoactive drug in the world. Approximately 80% of the world's population consumes it on a daily basis.
There is, however, considerable discussion about whether or not caffeine is in fact addictive. Those who hold that it is point to the undeniable withdrawal symptoms that make it difficult to stop using coffee and other caffeine-containing substances.
The cons say that there is no proven harm to caffeine consumption, and that this lack of harm and lack of interference with user's lives put it out of the addiction category.
There is ongoing research. The Diagnostic and Statistical Manual IV lists caffeine addiction as a "proposed diagnosis," and encourages more research.
Nicotine (smoking, tobacco), caffeine, food, Opiates (heroin, pain pills), benzodiazepines (valium,xanax), meth, and alcohol are the most common.
no it have not
Caffeine and nicotine both belong to stimulant group of drugs. Both drugs are effective in terms of increasing body functions. Nicotine is found in cigarettes while caffeine is present in coffee and tea.
nicotine and caffeine
Is there caffeine in Marlboro light cigarettes
Sweating and hot flashes are unfortunately a common side effect of menopause. These symptoms can last for years for some women and are more harsh if you consume nicotine and caffeine.
They are psychoactive drugs
Nicotine and caffeine are called stimulants. They get the heart pumping and give you energy.
Nicotine and/or caffeine
CNS
Because both nicotine and caffeine are stimulants - they would give a false reading on an EEG machine. Abstaining from smoking and drinking coffee for 24 hours before the test, would give a more accurate trace.
Nicotine Caffeine Amphetimine THC Guarana