Insert one comma to separate the coordinate adjectives. , On average, adults require approximately seven to nine hours of uninte
rrupted sleep each night to be healthy productive individuals; unfortunately, lack of adequate sleep can increase the chances of viral infections and other medical issues.
On average, adults require approximately seven to nine hours of uninterrupted sleep each night to be healthy productive individuals; unfortunately, lack of adequate sleep can increase the chances of viral infections, and other medical issues.
