I will never be able to understand fully how these athletes are able to do the things they do on a bicycle. While watching videos of BMX riders I learned that they possess key elements that allow them to do the things they do. They have balance: 
They can fly:
They can flip: 
And they can fall: 
Fall really hard:
So in conclusion I think that this is a tough sport to be a part of and for those who are involved in it I salute you.
I love watching the crazy things that these guys can do on a bike, it simply amazes me every single time. I wish that I was as good as these guys and girls at a sport.
Ms. Coffey is my favorite rider. She charges and takes her lumps. I respect their determination.