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Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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The human body produces and destroys 15 million blood cells every second.

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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.

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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Examples of different cell types in humans Examples of different cell types in humans
Examples of common surgical positions. Examples of common surgical positions.
Structure of the l cI repressor-DNA complex showing the recognition helices (in red) Structure of the l cI repressor-DNA complex showing the recognition helices (in red)
Examples of Sensory Receptors Examples of Sensory Receptors
Examples of Mutagenic Agents and Their Consequences Examples of Mutagenic Agents and Their Consequences
Video: Exocytosis - secretion

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