Ask unlimited questions for free
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
The average adult has about 21 square feet of skin.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
For a complete list of videos, visit our video library
