Therapies. 1  Treatment for associated medical problems. 2  Possible causes of central sleep apnea include heart or neuromuscular disorders, and treating those conditions may help. 3  For example, optimizing therapy for heart failure may eliminate central sleep apnea. 4  Supplemental oxygen.
Some of these households, while actually being in the middle and thus sometimes referred to as being middle class, cannot, however, afford the middle class lifestyle. Yet another definition states that the statistical middle class includes all those households with income ranging from $25,000 to $100,000.
Most middle-class families pay far less than this âaverage burden.â Suppose four families that each have incomes of $25,000 each pay $1,250 in income tax â fivepercent of their income â while one wea lthy family with $500,000 in income pays $125,000 inincome tax, or 25 percent of its income.ost middle-class families pay far less than this âaverage burden.â Suppose four families that each have incomes of $25,000 each pay $1,250 in income tax â fivepercent of their income â while one wea lthy family with $500,000 in income pays $125,000 inincome tax, or 25 percent of its income.