Farsightedness. The cause of hyperopia is usually genetic.

Hit To The Head. Mild traumatic brain injury (MTBI) is another term for concussion.

Around The Eye. The nasolacrimal ducts are commonly known as the tear ducts.

Capillaries. The human body has about 25,000 miles of capillaries.

Core System. Sarah, Duchess of York has endorsed the Weight Watcher's program.

60 Minutes. According to the World Health Organization, more than 80% of the world's adolescent population is insufficiently physically active.