Caffeine

Definition

Caffeine is a natural stimulant commonly found in coffee, tea, and various energy drinks that boosts alertness and reduces fatigue.

Scientific / Technical Definition

Caffeine is a central nervous system stimulant that belongs to a class of compounds known as methylxanthines. It operates by blocking the neurotransmitter adenosine's action, leading to increased neuronal firing and the release of neurotransmitters like dopamine and norepinephrine.

Benefits

• Increases energy and alertness
• Enhances physical performance and endurance
• Improves concentration and mental focus
• May assist with fat oxidation and weight management

Examples

• Coffee
• Tea
• Energy drinks
• Chocolate

Additional Information

• side effects: Potential side effects include insomnia, nervousness, restlessness, and increased heart rate. Excessive consumption can lead to caffeine addiction and withdrawal symptoms.

Related Terms

• Stimulants
• Nootropics
• Central Nervous System
• Methylxanthines

References

• Caffeine - MedlinePlus
• Caffeine for the Sustainment of Mental Task Performance - NCBI