Effects of five consecutive nocturnal hypoxic exposures on the cerebrovascular responses to acute hypoxia and hypercapnia in humans.

Examines the effects of nocturnal hypoxic exposures (NHE) on the cerebrovascular responses to acute hypoxia and hypercapnia in humans. Timing and sequence of overnight, blood, and acute dynamic measurements; Sensitivity of cerebral blood flow to acute variations in hypoxia; Physiological and symptomatic responses to NHE.