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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Plant apical meristems and the primary tissues they produce. Plant apical meristems and the primary tissues they produce.
An overview of the four phases of food use in animals: ingestion, digestion, absorption, and elimina An overview of the four phases of food use in animals: ingestion, digestion, absorption, and elimina
Furchgott's discovery that endothelial cells produce a vasodilating substance. Furchgott's discovery that endothelial cells produce a vasodilating substance.
Although males tend to be larger than females, the two overlap significantly in size. The size of a Although males tend to be larger than females, the two overlap significantly in size. The size of a
Pathway for synthesis of polyunsaturated fatty acids (PUFAs) in plants and animals Pathway for synthesis of polyunsaturated fatty acids (PUFAs) in plants and animals
Two Sonoran Desert Animals Two Sonoran Desert Animals
Video: Glucose anabolism reactions: Glycogenolysis and Gluconeogenesis

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