There are about 50 million adults and children in the United States alone who face this problem. The condition can worsen over time if left untreated.
Kuna takriban 50 milioni watu wazima na watoto katika Marekani peke yake ambao wanakabiliwa na tatizo hili. hali inaweza kuwa mbaya zaidi wakati kama ikiachwa bila kutibiwa.