Half Life of Substances in Body
The half-life of a chemical substance, such as caffeine, is the time it takes for half of the substance to be eliminated from the body. This concept is crucial in pharmacokinetics, which studies how drugs are absorbed, distributed, metabolized, and excreted in the body. - Gpt4
Example Caffeine
For caffeine specifically, its half-life can vary greatly depending on several factors such as age, liver function, pregnancy, and other individual differences. On average, the half-life of caffeine in a healthy adult is about 5 to 6 hours. This means that if you consume a cup of coffee with 200 mg of caffeine, about 5 to 6 hours later, approximately 100 mg of that caffeine will still be in your system. - Gpt4
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