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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

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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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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

An overview of the stages of translation An overview of the stages of translation
A hypothetical model of the process of cell-wall expansion. A hypothetical model of the process of cell-wall expansion.
The three stages of a specific immune response. The three stages of a specific immune response.
The Bergeron Process The Bergeron Process
Tunguska Event Tunguska Event
Human embryo at successive stages of development (not to scale). Human embryo at successive stages of development (not to scale).
Video: Anatomy and Chemical Makeup of a Single Hair (Animation)

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