Mopsical
The Journal
Why the Same Coffee Wrecks Your Sleep and Not Your Colleague's
Two people drink the same coffee at the same time. One sleeps normally; the other is still staring at the ceiling at one in the morning. This is usually put…
Your Caffeine Cut-Off Isn't a Time, It's a Half-Life
The usual advice is a clock time: no coffee after two, or after three, pick your rule. It is the wrong shape of advice, because caffeine does not care what…