BY NEWS MEDICAL
In their latest study, they injected rats with a compound to kill more than half of these cells, and then monitored the animals' breathing patterns.
They found that when the animals entered the rapid eye movement phase of sleep, when dreaming occurs, they stopped breathing completely, and were jolted into consciousness in order to start again.
Over a period of time, the breathing lapses increased in severity, spreading to other phases of sleep, and eventually occurring when the animals were awake as well.
Apparently rats possess 600 of these specialised cells, and the researchers believe humans have a few thousand, which are slowly lost over a lifetime.
Professor Jack Feldman, the lead researcher, suggests that our brains can compensate for up to a 60% loss of preBötC cells, but the cumulative deficit of these brain cells eventually disrupts our breathing during sleep.
He says as there is no biological reason for the body to maintain these cells beyond the average lifespan, so they are not replenished as we age, and as we lose them, we grow more prone to central sleep apnea.