Muscles also have more than one nucleus per cell, if you have strength trained. You can fast and diet and waste away all the protein and shrink them down, but t

Muscles also have more than one nucleus per cell, if you have strength trained. You can fast and diet and waste away all the protein and shrink them down, but the nuclei remain. Go in to a surge of calories, protein, (and optional androgenic hormone signaling) and the nuclei effectively parallel process transcription of mRNA in the ribosomes for regeneration of the proteins from amino acids and re-bulking up of the cells and your strength. This, (along with neural adaption) is what we are taking about when we reference “muscle memory”. It’s a steep hill to train the first time and multiply the nuclei, but once you have them, you have them for life, and subsequent re-strengthening efforts will be far easier. I’ve gone through this myself and it’s pretty shocking. It took me X years to achieve Y kilograms barbell whatever movement. A diet or lack of training for a year and I can only do Y/2. But if I eat a ton, I can be back to Y or higher in a few months.