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Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

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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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Approximately 25% of all reported medication errors result from some kind of name confusion.

The light reactions and chemiosmosis: the organization of the thylakoid membrane. The light reactions and chemiosmosis: the organization of the thylakoid membrane.
Non-Carbon Organic Molecules Non-Carbon Organic Molecules
Authoritative parenting involves enforcing rules in a way that conveys parental affection. Authoritative parenting involves enforcing rules in a way that conveys parental affection.
Flexible cooling fan blades change shape as the engine speed changes. Flexible cooling fan blades change shape as the engine speed changes.
Organization of plant cell walls Organization of plant cell walls
Levels of Organization Levels of Organization
Video: Complement Proteins Animation

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