Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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

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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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