Insomnia is a well-known sleep disorder that is characterized by difficulty falling and staying asleep at night. According to several studies and surveys, around 10–30% of adults in the United States suffer from chronic insomnia, but some studies...
Insomnia is a well-known sleep disorder that is characterized by difficulty falling and staying asleep at night. According to several studies and surveys, around 10–30% of adults in the United States suffer from chronic insomnia, but some studies...