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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).

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

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There are 20 feet of blood vessels in each square inch of human skin.

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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

White tiger in water at the Singapore Zoo White tiger in water at the Singapore Zoo
Structure of the water molecule Structure of the water molecule
Concentric double-pipe heat exchanger for counter-current flow Concentric double-pipe heat exchanger for counter-current flow
Cold, dense water accumulates around the Arctic and Antarctic Cold, dense water accumulates around the Arctic and Antarctic
Most Americans obtain their drinking water from a community water system Most Americans obtain their drinking water from a community water system
Hydrozoan. Hydra, a freshwater species capturing and digesting a water flea. Hydrozoan. Hydra, a freshwater species capturing and digesting a water flea.
Video: Cardiac Cycle (Part 4 of 4)

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