⚡

Caffeine & Health

How much caffeine is really in your cup, how your body handles it, and what the research says about coffee and health.

4 subtopics·5 articles
🧮

Related calculators

Turn these guides into a better cup.

Caffeine Intake CalculatorAdd up your daily caffeine vs the FDA limit.Caffeine Half-Life CalculatorSee how much is left in your system at bedtime.

Caffeine Content

How much caffeine is in espresso, cold brew, drip, decaf, and everything in between — with the numbers.

View all
Espresso CaffeineCold Brew CaffeineDecafCoffee vs Energy Drinks
Caffeine in Espresso vs Cold Brew vs Drip: The Real Numbers
Caffeine6 min read

Caffeine in Espresso vs Cold Brew vs Drip: The Real Numbers

How Much Caffeine Is in a Cup of Coffee?
Caffeine6 min read

How Much Caffeine Is in a Cup of Coffee?

Caffeine & Your Body

Half-life, sleep, tolerance, and the crash — how caffeine moves through you and how to time it.

View all
Caffeine Half-LifeCaffeine & SleepCaffeine ToleranceSafe Daily Limit
How Long Does Caffeine Last in Your System?
Caffeine5 min read

How Long Does Caffeine Last in Your System?

When to Stop Drinking Coffee Before Bed
Caffeine5 min read

When to Stop Drinking Coffee Before Bed

How Much Caffeine Is Too Much? The Safe Daily Limit
Caffeine6 min read

How Much Caffeine Is Too Much? The Safe Daily Limit

Coffee & Health

Evidence-based answers on coffee’s benefits and downsides — empty stomach, pre-workout, black coffee, and more.

View all
Coffee BenefitsCoffee on an Empty StomachBlack CoffeeCoffee Before a Workout

Guides for “Coffee & Health” are brewing.

Try our calculators meanwhile

Calories & Diet

What’s really in your cup by the numbers — latte calories, black coffee, bulletproof, and cutting sugar.

View all
Latte CaloriesCoffee CaloriesBulletproof CoffeeCutting Sugar

Guides for “Calories & Diet” are brewing.

Try our calculators meanwhile