 spiritually, mentally, physically, you know, do the, you know that stuff. So anyway, we started talking about this, the 12 biggies to help your lifespan and improve your health. Number one, exercise. Ding, ding, ding. Is anybody, raise your hand if you think that's, wow, I never heard that. I was listening this morning, got to the, I always get to the clinic early. I was listening to an interview of a guy who does research on the mitochondria.