« previous next »
« previous next »
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

human skin and pressure points human skin and pressure points
View of the bottom surface of the human brain. View of the bottom surface of the human brain.
Regions of the Human Visual Cortex and Their Functions Regions of the Human Visual Cortex and Their Functions
Organization of the human body. Organization of the human body.
Structure of human immunodeficiency virus Structure of human immunodeficiency virus
A single cell from an early-stage human embryo A single cell from an early-stage human embryo
Video: Bipolar Disorder

For a complete list of videos, visit our video library