At least one out of every 5 Americans suffers from allergies. Common allergens include dust, pollen, animal dander, mold and certain foods.
About 10 to 15 million people each year develop symptoms of sinusitis. Sinusitis may be acute (short-term, as after a cold or flu) or chronic (more than 8-12 weeks).
Sleep Apnea is very common, and affects more than twelve million Americans. As many as 25% of adult males and 10% of women may have sleep disruption.