Unlike obstructive sleep apnea, in which a person stops breathing when their airway collapses, central sleep apnea is triggered by something going awry in the brain's breathing center.

As we lose them, we grow more prone to central sleep apnea.

We wanted to reveal the mechanism behind central sleep apnea, which most commonly affects people after age 65,

We aren't going to lose sleep over being bigger, faster and stronger and hitting hard. We know that's how we will have to play against the Canadians. We aren't going to change our game.

We're facing a serious crisis that may end up culling some of the very best people out of the biomedical research enterprise. There will be people who lose all funding or have gaps in funding so they can't maintain the infrastructure they've built.

We speculate that our brains can compensate for up to a 60 percent loss of pre-Boetzinger cells, but the cumulative deficit of these brain cells eventually disrupts our breathing during sleep. There's no biological reason for the body to maintain these cells beyond the average lifespan, and so they do not replenish as we age,