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Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Summation of Heart Sounds, Normal S1 Summation of Heart Sounds, Normal S1
Changes in bronchioles during an asthma attack: (A) normal bronchiole and (B) in asthma attack. Changes in bronchioles during an asthma attack: (A) normal bronchiole and (B) in asthma attack.
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
Normal nerve conduction of Sodium ion Normal nerve conduction of Sodium ion
The obese (ob) mouse mutant, shown on the left (a normal mouse is on the right), has provided many c The obese (ob) mouse mutant, shown on the left (a normal mouse is on the right), has provided many c
A commercially available DNA microarray, called a GeneChip, marketed by Affymetrix, Inc A commercially available DNA microarray, called a GeneChip, marketed by Affymetrix, Inc
Video: Primary and secondary response to infection

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