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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Free energy change during electron transport Free energy change during electron transport
Tyndall effect Tyndall effect
Thorndike’s Puzzle Box and the Law of Effect (2 of 2) Thorndike’s Puzzle Box and the Law of Effect (2 of 2)
Metabolic pathways involved in the breakdown of proteins for energy. Metabolic pathways involved in the breakdown of proteins for energy.
Renewable Energy Efforts Renewable Energy Efforts
The oceans have absorbed 90% of excess energy The oceans have absorbed 90% of excess energy
Video: Role of the respiratory system - effect of altered ventilation rates

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