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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

How stomatal pores open and close. How stomatal pores open and close.
Iberian lynx in close-up Iberian lynx in close-up
Mosquito Eyes Up Close: Electron Microscope Image Creates Stunning View Of Insect Mosquito Eyes Up Close: Electron Microscope Image Creates Stunning View Of Insect
The Spinal Cord, The Spinal Cord and Spinal Nerves; Close-up of the Caudal Region of the Spinal Nerv The Spinal Cord, The Spinal Cord and Spinal Nerves; Close-up of the Caudal Region of the Spinal Nerv
Bonobos are close relatives of chimpanzees and of humans. Bonobos are close relatives of chimpanzees and of humans.
Most catalytic converters are located as close to the exhaust manifold as possible as seen in this ... Most catalytic converters are located as close to the exhaust manifold as possible as seen in this ...
Video: Eczema

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