Hypoxia is low levels of oxygen in your body tissues, causing confusion, bluish skin, and changes in breathing and heart rate. It can be life-threatening but is treatable.| Cleveland Clinic
Sleep deprivation and deficiency are conditions that occur when you don’t get enough good quality sleep when your body needs it. This can lead to physical and mental health problems. Learn about the causes, risk factors, symptoms, and treatment for Sleep deprivation and deficiency.| NHLBI, NIH