Caffeine & Health

The science of caffeine,
explained simply

Articles grounded in peer-reviewed clinical research — EFSA, FDA, ANSES. So you can understand your intake and make informed choices.

📌 Featured

A glass of water on a bedside table in a dimly lit bedroom conducive to sleep

Health

Hydration and Sleep: The Overlooked Connection (And How to Use It to Your Advantage)

Poor hydration and bad sleep form a silent vicious cycle. Discover what science says and the right evening habits to sleep through the night.

Sleep data graph on a smartphone screen next to a cup of coffee

Scientific studies

What Your Personal Data Can (Really) Tell You About Caffeine and Sleep

Can your caffeine and sleep data tell a reliable story? Learn how to read a personal correlation without falling into interpretation traps.

A smartwatch on a wrist displaying resting heart rate in the morning

Health

Resting Heart Rate: What Your BPM Reveals About Your Health

What is resting heart rate? Normal BPM ranges, key factors (fitness, sleep, stress, caffeine) and how your Apple Watch measures it. A complete guide.