« previous next »
« previous next »
 

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Your heart beats over 36 million times a year.

Creede, Colorado, circa 1890, a rough silver mining town that grew from 660 people in 1889 to over 1 Creede, Colorado, circa 1890, a rough silver mining town that grew from 660 people in 1889 to over 1
Faith Ringgold, God Bless America, No. 13 from the series American People. Faith Ringgold, God Bless America, No. 13 from the series American People.
Some people have begun to “attend” church as avatars. Some people have begun to “attend” church as avatars.
U.S. suburbs were once unplanned, rambling affairs that took irregular shapes as people moved away ... U.S. suburbs were once unplanned, rambling affairs that took irregular shapes as people moved away ...
People with night eating syndrome may consume more than half their day's calories between 8 pm ... People with night eating syndrome may consume more than half their day's calories between 8 pm ...
Government in America: People, Politics, and Policy, AP Government in America: People, Politics, and Policy, AP
Video: Cell mediated immune response to a viral infection Animation

For a complete list of videos, visit our video library