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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

To travel quickly, killer whales leap out of the water when swimming—a behaviour kn To travel quickly, killer whales leap out of the water when swimming—a behaviour kn
Horses need to lie down occasionally, and prefer soft ground for a nap. Horses need to lie down occasionally, and prefer soft ground for a nap.
(A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene (A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene
Comparison of a tender and mature leaf. Comparison of a tender and mature leaf.
Different parts of the body mature at different rates. “General” refers to the body as a whole: the Different parts of the body mature at different rates. “General” refers to the body as a whole: the
How Far Did Your Food Travel? How Far Did Your Food Travel?
Video: Hormonal regulation of pregnancy - week 1

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