> First priority, make sure you don't die. Sleep and recovery are down the list a bit. But lack of sleep can impair immunity and disturb blood pressure and hea

> First priority, make sure you don't die. Sleep and recovery are down the list a bit. But lack of sleep can impair immunity and disturb blood pressure and heart rhythm. Keeping someone with major trauma under stress (like being constantly awake) can make them more likely to die.