Ask unlimited questions for free
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.
The horizontal fraction bar was introduced by the Arabs.
Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
For a complete list of videos, visit our video library