
Your body was running before the manual arrived.
What your body actually needs, and the rest you can stop doing
Extreme busyness, whether at school or college, kirk or market, is a symptom of deficient vitality.— Robert Louis Stevenson, An Apology for Idlers, in Virginibus Puerisque, and Other Papers (1881)
The manuals keep getting longer. The evidence keeps getting shorter.
In 2026 a 688-page operating manual for the human body topped the bestseller lists, and a generation learned to score its sleep, chart its glucose and swallow a shelf of capsules before breakfast. Off Protocol goes back to the largest trials and the longest studies and finds a plainer, kinder answer: a short list of ordinary habits carries most of the benefit anyone has measured. Past it, the returns flatten fast, and many of the extras quietly cost you, in money, in hours, and in nerves that are never off duty.
From the 1965 pedometer that gave us ten thousand steps to the vitamin trial stopped early because the vitamin group was dying faster, Marco Delgado separates the few things your body needs from the many you can stop doing, and shows where the evidence pushes back on him too.
Your body was running before the manual arrived. It can run without it.

