|
Author Question: Sal and Sadie have been married for 40 years. When asked to compare their current relationship to ... (Read 29 times) |
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.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.