« previous next »
« previous next »
 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Spotted hyena walking in profile Spotted hyena walking in profile
Different parts of the body mature at different rates. “General” refers to the body as a whole: the Different parts of the body mature at different rates. “General” refers to the body as a whole: the
How Much Food Does the World Produce Per Person? How Much Food Does the World Produce Per Person?
A knuckle-walking gorilla A knuckle-walking gorilla
Some skeletal differences between a knuckle-walking gorilla and a bipedal human Some skeletal differences between a knuckle-walking gorilla and a bipedal human
MRI scans of normal elderly person compared to one with Alzheimer's MRI scans of normal elderly person compared to one with Alzheimer's
Video: Mechanisms of capillary exchange

For a complete list of videos, visit our video library