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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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Medication errors are more common among seriously ill patients than with those with minor conditions.

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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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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Bacterial cell division. Bacterial cell division.
A molecular model showing chromosome territories in the cell nucleus of humans A molecular model showing chromosome territories in the cell nucleus of humans
Cell Cell
Cell-mediated immunity, primary and secondary response. Cell-mediated immunity, primary and secondary response.
Reproductive Cell Division: Meiosis I Reproductive Cell Division: Meiosis I
Fracture and Repair of Bone Open (Compound) Fracture and Repair of Bone Open (Compound)
Video: Role of complement proteins

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