Bodybuilding
One fibre. Several locks.
Ten essays, in order. The two fibre types, then the motor itself — actin, myosin, the stroke — then how a fibre gets thicker, the androgen receptor, the steroid families by name, the bill those drugs send to the rest of the body, growth hormone and insulin and myostatin, how peptides and food meet that receptor, what a useful set is doing, and the week of food and sleep. No doses. This shop does not sell steroids.
01
10 min · Bodybuilding
Type I and type II: the two fibres a muscle actually is
Slow fibres last. Fast fibres throw the force. Diet, drugs and workouts all land on that split — so the muscle series starts with the myosin, not the vial.
02
14 min · Bodybuilding
Actin and myosin: the motor inside the fibre
The sarcomere, the thin rope, the thick motor, the eight-nanometre stroke, and the calcium switch that lets a nerve turn all of it on. One ATP per pull.
03
8 min · Bodybuilding
How a fibre grows: tension, time, and the protein ledger
Synthesis minus breakdown, for weeks. Why soreness is the wrong score, why the pump is water, and why long ranges of motion keep showing up in the trials.
04
8 min · Bodybuilding
Androgens: the hormone that talks to the muscle nucleus
Testosterone binds a receptor in the myonucleus, adds nuclei, and asks for food. It is not growth hormone, not a cycle written as an essay, and not a fibre you can buy.
05
10 min · Bodybuilding
Steroid families: four chemistries, one receptor
Testosterone, the 19-nors, the DHT-derived, and the orals that rent the liver. Wet and dry are oestrogen and water, not two kinds of muscle.
06
9 min · Bodybuilding
The bill outside the fibre: axis, blood, liver, heart
The androgen receptor is in more places than the biceps. Fertility, HDL, haematocrit, the left ventricle, the voice, the tendon. A map of the tissues. Not a course.
07
8 min · Bodybuilding
Growth hormone, insulin, myostatin: the other levers on a fibre
After testosterone, the rest of the muscle-drug list is different receptors: a liver hormone, a storage hormone, and a brake. Food decides which of those signals becomes tissue.
08
8 min · Bodybuilding
Androgens, peptides, and the meal
The nucleus, the growth-hormone receptor, and leucine do not share a lock. Here is what each one asks of a fibre, and what food still has to supply.
09
9 min · Bodybuilding
What the set is doing: failure, volume, rest, range
Why the last reps matter more than the first, why ten hard sets is a floor and not a personality, and why a short rest quietly deletes the tension you came for.
10
9 min · Bodybuilding
Food and training: how to spend the fibre you have
The practical half of the muscle series. Recruit the fast fibres, feed them, sleep, and stop asking a drug to do a week's work.
Growth-hormone peptides in the catalogue — CJC without DAC, ipamorelin, somatropin, IGF-1 LR3 — are laboratory reagents for a different receptor. They are not anabolic steroids. The growth-hormone axis essay is that half. Protein grams live in the protein essay.