caffeinerelated

Caffeinerelated refers to anything associated with caffeine, the world's most widely used psychoactive substance. Caffeine occurs naturally in coffee beans, tea leaves, cacao, and kola nuts and is added to a range of beverages, foods, and medicines. It acts mainly as an antagonist of adenosine receptors in the brain, which reduces perceived fatigue and increases alertness. Its effects can vary by dose, timing, and individual factors such as age, liver function, pregnancy status, and smoking.

Typical caffeine content varies: coffee 80–150 mg per 8 oz serving, tea 20–60 mg, energy drinks 40–300 mg per can, cola drinks 20–40 mg per 12 oz, and chocolate 5–20 mg per ounce. Caffeinated medicines and supplements provide varying amounts as well.

In terms of health, caffeine can improve attention, reaction time, and mood in the short term. It can also cause jitters, anxiety, insomnia, increased heart rate, and stomach upset in sensitive individuals or at high doses. Regular use can lead to tolerance and, for some people, withdrawal symptoms such as headaches and fatigue upon cessation. Long-term associations from observational research have suggested possible reduced risk of certain disorders (for example Parkinson’s disease and some liver conditions), but evidence is not conclusive and high intake may have adverse effects.

Safety guidelines generally consider moderate caffeine consumption safe for most healthy adults, commonly up to about 400 mg per day. Pregnant individuals are often advised to limit intake to around 200 mg per day. Caffeine can interact with certain medications and conditions, and caffeine-related disorders are recognized in some classifications as topics for further study. The term caffeinerelated encompasses products, health effects, and cultural practices surrounding caffeine consumption.