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Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Here's how comic book heroes are made Here's how comic book heroes are made
Attributed to Thomas Dennis or William Searle, Chest, made in Ipswich, Massachusetts. Attributed to Thomas Dennis or William Searle, Chest, made in Ipswich, Massachusetts.
A healthy diet is made up of well-balanced nutrients. A healthy diet is made up of well-balanced nutrients.
Chart showing average yearly dose of radiation from natural and human-made sources Chart showing average yearly dose of radiation from natural and human-made sources
Sea Lamprey mouth, showing teeth. Sea Lamprey mouth, showing teeth.
An older woman with wrinkled skin, gray hair, and darker teeth, smokes a cigarette. An older woman with wrinkled skin, gray hair, and darker teeth, smokes a cigarette.
Video: Knee Animation

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