Alice wears a machine at night to help her breath. The disorder she likely suffers from is dyspnea.
Dyspnea is generally referred to as shortness of breath. It is the characterized by feeling of discomfort during breathing which may vary in intensity.
Dyspnea can be classified as acute or chronic, based on the time span for which it occurs.
Paroxysmal nocturnal dyspnea (PND) is a feeling of shortness of breath which wakes up the patient, frequently after one or two hours of sleep, moreover it is normally alleviated in the upright posture.
In cases of sleep apnea, a continuous positive airway pressure (CPAP) machine, probably containing supplementary oxygen, may help to enhance breathing.
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