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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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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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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.

Thoracic Expansion, Anterior Thoracic Expansion, Anterior
Pneumothorax. Figure illustrates how puncture of thoracic wall and tearing of pleural membrane allow Pneumothorax. Figure illustrates how puncture of thoracic wall and tearing of pleural membrane allow
Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. ( Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. (
Bones change radically in size and shape from newborn to adult, as these cervical vertebrae demonstr Bones change radically in size and shape from newborn to adult, as these cervical vertebrae demonstr
Right posterolateral view of articulated vertebrae Right posterolateral view of articulated vertebrae
Changes in the size of the thoracic cavity during the respiratory cycle Changes in the size of the thoracic cavity during the respiratory cycle
Video: The pH scale - Strong acids and Weak acids

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