I like to challenge myself at the pool: can I swim the 25 yards from one end of the pool to the other without taking a breath? Things are still under water. Swimmers in other lanes pass me by and I watch my bubbles rise to the surface. Swim harder, faster, push to stop my body from rising to the surface. I see the big black cross signaling the side of the pool, Can I make it? Two more kicks and yes, I made it! Up for air and breathe, breathe, breathe.