Caffeine Effects and Withdrawal Quiz
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Questions and Answers

What is the most common symptom of caffeine withdrawal in humans?

  • Fatigue
  • Headache (correct)
  • Decreased motivation
  • Irritability

What potential effect does high-dose caffeine have during pregnancy?

  • Increases fetal growth
  • Decreases placental blood flow (correct)
  • Reduces risk of miscarriage
  • Increases fetal heart rate

What kind of symptoms might be expected from caffeine withdrawal in animals?

  • Enhanced motor function
  • Decreased locomotor activity (correct)
  • Increased appetite
  • Heightened alertness

How does caffeine ingestion affect the risk of miscarriage in pregnant individuals?

<p>Can increase miscarriage risk by 19% with certain intakes (B)</p> Signup and view all the answers

What level of caffeine consumption can lead to physical dependence in humans after a span of 6-14 days?

<p>600mg per day (A)</p> Signup and view all the answers

Which statement best describes the classification of caffeine?

<p>Caffeine belongs to a family of drugs known as methylxanthines. (D)</p> Signup and view all the answers

What was one of the earliest sources of caffeine isolation?

<p>The fruit of the Coffea tree. (A)</p> Signup and view all the answers

Which of the following compounds is NOT a commonly self-administered methylxanthine?

<p>Nicotine (B)</p> Signup and view all the answers

Where can caffeine be found in dietary sources?

<p>In a variety of foods and medications, including analgesics. (D)</p> Signup and view all the answers

What characterizes the historical spread of coffee and tea?

<p>Tea spread to Europe before coffee made its appearance. (A)</p> Signup and view all the answers

Flashcards

Methylxanthines

A family of drugs that includes caffeine, theophylline, and theobromine.

Caffeine sources

Caffeine is found in coffee, tea, chocolate, and some medications, soft drinks, and foods.

Caffeine's history

Caffeine use is widespread, with a history dating back to ancient civilizations in Ethiopia, China, and the Americas.

Caffeine administration

Caffeine is commonly administered by consuming coffee, tea, chocolate, soft drinks, etc. or through pharmaceutical products.

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Caffeine effects

Caffeine has physiological and performance-related effects like increased alertness, and enhanced cognitive function.

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Caffeine Withdrawal Symptoms in Humans

Headache, fatigue, drowsiness, lethargy, decreased motivation, irritability, decreased self-confidence, and flu-like symptoms (nausea, vomiting, muscle pain/stiffness) are typical caffeine withdrawal symptoms in humans. These symptoms are often related to the dose of caffeine.

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Caffeine Physical Dependence

Physical dependence on caffeine can develop after taking 600mg/day for 6-14 days. Smaller doses taken over longer periods can also lead to dependence.

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Caffeine Withdrawal in Animals

Caffeine withdrawal in animals can reduce locomotor activity and disrupt ongoing behaviors that they perform.

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Caffeine and Reproduction Risks

High doses of caffeine can cause chromosomal damage and increase the risk of chromosomal damage and miscarriage. It can also decrease placental blood flow, slowing fetal growth and lowering birth weight, especially during the first trimester.

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Caffeine and Cardiac Effects

Caffeine can increase blood pressure and potentially increase the risk of possible heart problems, although a definitive link needs more research.

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