« previous next »
« previous next »
 

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?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Coronary artery bypass graft (CABG). The grafts are often obtained from the patient’s saphenous vein Coronary artery bypass graft (CABG). The grafts are often obtained from the patient’s saphenous vein
Cell Weapon Cell Weapon
Concealed spider Concealed spider
Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S
Country of Birth of Authorized U.S. Immigrants Country of Birth of Authorized U.S. Immigrants
Reptiles (lizards, snakes, and turtles) often carry Salmonella Reptiles (lizards, snakes, and turtles) often carry Salmonella
Video: Causes of Acne

For a complete list of videos, visit our video library