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Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

A juvenile blue whale with its mother A juvenile blue whale with its mother
Juvenile Mediterranean House Gecko (H. turcicus) Juvenile Mediterranean House Gecko (H. turcicus)
A juvenile and a female torrent duck on the Urubamba River, Peru A juvenile and a female torrent duck on the Urubamba River, Peru
Juvenile buzzard being weighed for research Juvenile buzzard being weighed for research
Mammalian male sex determination is initiated by the Y-linked SRY gene Mammalian male sex determination is initiated by the Y-linked SRY gene
Video: Introduction to Epilepsy

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