« previous next »
« previous next »
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

A microsatellite locus can show linkage to a disease gene A microsatellite locus can show linkage to a disease gene
Disease-Modifying Antirheumatic Drugs (DMARDs) and Biologic Therapies Disease-Modifying Antirheumatic Drugs (DMARDs) and Biologic Therapies
Drugs for Peptic Ulcer Disease Drugs for Peptic Ulcer Disease
Malaria Ecology versus Incidence of Malaria Malaria Ecology versus Incidence of Malaria
Nutrition versus GDP per Capita Nutrition versus GDP per Capita
Total Fertility Rate in Japan: Actual versus Forecast Total Fertility Rate in Japan: Actual versus Forecast
Video: Glycolysis Animation

For a complete list of videos, visit our video library