Alpha-actinin-3

We look at that.

There's a gene called the ACTN3, the famous one.

And this is power versus endurance bias, fast twitch, slow twitch or intermediate.

then, you know, if you run this on a young athlete, then they might know, hey, I'm probably more fast twitch, I'm probably going to be better at sprinting than running marathons, you know, or whatever the case is.