Ask unlimited questions for free
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
The longest a person has survived after a heart transplant is 24 years.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
For a complete list of videos, visit our video library