one still pending. A b c d GBD 2015 Mortality and Causes of Death, Collaborators. Publish Ahead of Print:. There is insufficient evidence to recommend for or against the use of oxygen by the first aid provider. Hyperventilation is often used by both deep and distance free-divers to flush out carbon dioxide from the lungs to suppress the breathing reflex for longer. Permanent dead link "Bellagio Resort Casino". 49 However, over the long term significant deficits were noted, including a range of cognitive difficulties, particularly general memory impairment, although recent magnetic resonance imaging (MRI) and magnetoencephalography (MEG) were within normal range.