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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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.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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There are more bacteria in your mouth than there are people in the world.
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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.
Average national IQs according to IQ and Global Inequality
Stages of labor.
Four ways of thinking about the relations among the perception of emotion-inducing stimuli, the ...
