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Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Young adulthood brings the greatest number of role transitions and highest levels of demands than ... Young adulthood brings the greatest number of role transitions and highest levels of demands than ...
Turn the outlet valve of the canister to the OFF or CLOSED position. Turn the outlet valve of the canister to the OFF or CLOSED position.
Supine position. Placement of bolsters under the knees and neck. Supine position. Placement of bolsters under the knees and neck.
Gently stretch neck muscles. Apply stretches with head in neutral position, lateral flexion, and ... Gently stretch neck muscles. Apply stretches with head in neutral position, lateral flexion, and ...
Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule
Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia). Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia).
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

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