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Questions and Answers
What is the main effect of caffeine on the central nervous system?
Which molecules does caffeine block in the central nervous system?
Which of the following is a natural source of caffeine?
When did daily consumption of caffeine take off sporadically around the world?
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What percentage of the US population has at least one caffeinated beverage every day?
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What is the safe daily limit of caffeine consumption for an adult?
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What are some side effects of consuming too much caffeine?
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How much pure caffeine is equivalent to drinking 75 cups of coffee at once?
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What did the FDA ban in 2018 regarding caffeine products?
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Despite its benefits, what is true about caffeine?
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Study Notes
- Caffeine is a widely used psychoactive substance that stimulates the central nervous system.
- It blocks adenosine molecules responsible for slowing down the central nervous system before sleep.
- Caffeine occurs naturally in coffee beans, tea leaves, cacao beans, and some tree nuts.
- Daily consumption of caffeine took off sporadically at different times in different places around the world.
- Nearly 90% of the US population has at least one caffeinated beverage every day.
- Up to 400 milligrams of caffeine per day or about four cups of coffee is considered safe for an adult.
- Too much caffeine can cause side effects such as migraines, insomnia, nervousness, and muscle tremors.
- One tablespoon of pure caffeine equivalent to drinking 75 cups of coffee at once can have lethal consequences.
- The FDA banned the bulk sale of products containing pure or highly concentrated caffeine in 2018.
- Caffeine comes with considerable risks like any other substance, despite its benefits.
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