Dr. Bret Contreras

That study was, I think, a lot of years ago, maybe like 10, 15-year-old study.

But there's probably a genetic element to how many sets is optimal for us.

But she saw that if I trained, if I had to do three lower body workouts a week, she spun her wheels.

Could I have said, we're going to do three, but we're going to do more sets, way less effort.

But who likes stopping five reps shy of failure?

It's hard to do when it's easy and you stop.

People like training.

Serious lifters like training close to failure.

And then if someone just generally doesn't like I know there's genetics to that exercise enjoyment.

You know that there's genetics of everything.

I was blogging back, you know, like 2015.

I started, I was like looking at everything.

There's a, you know, genetics of pain tolerance, genetics of exercise enjoyment, genetics of

Muscle damage recovery, there's obviously look at, I remember I wrote this article for Teenation back in the day.

And there were some fascinating studies back then.

They took the top responders versus the non-responders and they compared their physiology.

And this is, again, this is like 15-year-old research, maybe 20-year-old research, but it was like,

The top responders had better satellite cell efficiency, meaning the satellite cells are like stem cells that lay – they lay quiescent unless they're called upon through stimulating gains, you know, mechanical tension or whatever.

Some evidence that metabolic stress and muscle damage can signal them, but like –

And they're called upon when you hit a hard workout.