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Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Superior and ¬inferior parts Superior and ¬inferior parts
As China has embraced its version of capitalism, wealth has grown, as has consumption. Luxury goods ... As China has embraced its version of capitalism, wealth has grown, as has consumption. Luxury goods ...
Inferior mirage Inferior mirage
Use fingertips to apply friction to muscle attachments along inferior length of the clavicle. Use fingertips to apply friction to muscle attachments along inferior length of the clavicle.
Superior & inferior view of the tarsus (ankle) Superior & inferior view of the tarsus (ankle)
Video: Immune responses Animation

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