Ready In. 30 m. Melt the butter or margarine in a large skillet over medium-high heat. Add the garlic and asparagus spears; cover and cook for 10 minutes, stirring occasionally, or until asparagus is tender. If you like your asparagus well done, reduce heat and cook an additional 10 minutes.
Another possible cause of low blood oxygen saturation is anemia, which occurs when the red blood cells don't have adequate hemoglobin, an iron-rich protein that acts as the oxygen carrier, according to the National Anemia Action Council. Anemia has many causes.
Even if you do not have sleep apnea, neuromuscular. weakness can cause low levels of oxygen because of. shallow breathing during REM sleep (also known as. âdream sleepâ). When you are in REM sleep, you rely. mostly on your diaphragms to move and draw in air.