Caffeine is a drug of abuse, like alcohol or cocaine, because it meets these two criteria: "reinforcing efforts" and "adverse effects which can cause harm to self or society." Reinforcing effects is science talk for "addictive": The more you have, the higher your tolerance levels and the more you need. Take it away, and you experience withdrawal symptoms.
C8H10N4O2 is a chemical compound found in beans, leaves and fruits of some plants. It's a natural pesticide for them, paralyzing and killing insects that try to feed on them. On humans it acts as a stimulant on the central nervous system and has psychotropic effects. It increases heart rate, blood pressure and respiration, and it is mildly diuretic.
Caffeine is structurally similar to adenosine. Image source: Wikipedia, public domain.
Recovering alcoholics or drug addicts will tell you caffeine is a "gateway drug"--it increases the chances of their falling back into addiction.
Overuse can develop into "caffeinism," which may cause muscle twitching, insomnia, headaches and heart palpitations. Even with a mild overdose, about 300 mg or so (3 cups of coffee, 7 cups of chai), you can get "caffeine jitters". You can actually die from an overdose of coffee.
McDonald's | "Don't Talk To Me / Coffee" commercial.
Comments from Google Buzz:
Vamsi Balakrishnan - Voltaire used to drink ~40 cups of coffee a day...:)
Ves Dimov, M.D. - He had developed tolerance. The same phenomenon is commonly observed in drug addicts.
Vamsi Balakrishnan - Still, I think it's amazing. I wonder what his withdrawal would have been like. Bennie Franklin also had some sort of deal with caffeine.
I think alcohol tolerance would have been better than drug tolerance for analogy...but I'm not really sure. (is the following correct as an analogy?)
Alcohol tolerance = induction of enzymes --> can literally drink more than once could, though still doing damage along the way. --> I'd think caffeine would be like this...
Drug tolerance = like heroin --> more needed for same effects, but once some critical threshold is reached, person will die of OD. (too hungry at the moment to think clearly)
Caffeine is structurally similar to adenosine. Image source: Wikipedia, public domain.
Recovering alcoholics or drug addicts will tell you caffeine is a "gateway drug"--it increases the chances of their falling back into addiction.
Overuse can develop into "caffeinism," which may cause muscle twitching, insomnia, headaches and heart palpitations. Even with a mild overdose, about 300 mg or so (3 cups of coffee, 7 cups of chai), you can get "caffeine jitters". You can actually die from an overdose of coffee.
McDonald's | "Don't Talk To Me / Coffee" commercial.
Comments from Google Buzz:
Vamsi Balakrishnan - Voltaire used to drink ~40 cups of coffee a day...:)
Ves Dimov, M.D. - He had developed tolerance. The same phenomenon is commonly observed in drug addicts.
Vamsi Balakrishnan - Still, I think it's amazing. I wonder what his withdrawal would have been like. Bennie Franklin also had some sort of deal with caffeine.
I think alcohol tolerance would have been better than drug tolerance for analogy...but I'm not really sure. (is the following correct as an analogy?)
Alcohol tolerance = induction of enzymes --> can literally drink more than once could, though still doing damage along the way. --> I'd think caffeine would be like this...
Drug tolerance = like heroin --> more needed for same effects, but once some critical threshold is reached, person will die of OD. (too hungry at the moment to think clearly)
References:
Cheat Sheet: The Dark Side of Caffeine. Forbes.com.
Caffeine Poster Chart http://bit.ly/4yFjbC and Caffeine content for coffee, tea, soda http://bit.ly/4OVo8
The 5 Phases of Caffeine Intake http://bit.ly/3tslld
"Death by Caffeine Test: How much of your favorite energy drink, soda, or caffeinated food would it take to kill you?" http://bit.ly/WtL3f
Coffee vs. Tea - Infographic of Health Benefits and Risks http://goo.gl/StIsr
Caffeine is a major source of antioxidant activity in coffee. WebMD, 2011.
