Andrew Huberman· PhD
Mechanical tension is kind of like strength. And this is why if you do even sets of five or eight, and you're kind of close to that strength range, you will gain a little bit of muscle. It's not optimal muscle gain, but you're going to gain some because everything in these, like physiology didn't cut off at four reps and then five reps is a different thing, right? It's always a blend, so think of it as like a fading curve.