Everybody's always asking me about my blood pressure. They did an interview once where they hooked me up to a blood pressure machine and they'd rile me. I'd yell and scream, and then it would just go back to normal in a few minutes. Everything else is probably rotting, but the blood pressure is spectacular.
In space, you need to exercise your heart since it's not pumping blood around at the same rate.
The human heart is not unchanging (nay, changes almost out of recognition in the twinkling of an eye).
By practice men can bring even the heart under control, until it will just beat at will, slowly, or quickly, or almost stop. Nearly every part of the body can be brought under control.
The doctor heard my heartbeat and found out I had an irregular heartbeat. I was not symptomatic or aware of my symptoms. I had no idea that this could make me five times more likely to have a stroke than somebody who doesn't have this.
A lot of people misunderstand what it means to have good cardio. Good cardio is when you are able to push the fight, and I've shown that in all of my fights.
I top up my endurance with running and cycling because in a race, your heart rate is up at 150, so we have to train at that level.
We can read your heart rate from a webcam without you wearing anything - we can just use the reflection of your face, which shows blood flow.
