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Did you know?

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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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

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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.

Relationship between levels of COHb in blood and concentration of CO in the surrounding air Relationship between levels of COHb in blood and concentration of CO in the surrounding air
Risk of Stroke and Heart Disease Increase with Increasing Blood Pressure Risk of Stroke and Heart Disease Increase with Increasing Blood Pressure
Ischemic compression (i.e., direct pressure) to a trigger point in the trapezius muscle. Ischemic compression (i.e., direct pressure) to a trigger point in the trapezius muscle.
Relative lifetime risk of schizophrenia Relative lifetime risk of schizophrenia
Increased Risk of Knee Osteoarthritis Increased Risk of Knee Osteoarthritis
The relationship between recombination frequency and physical distance between genes The relationship between recombination frequency and physical distance between genes
Video: HIV Infection: Viral life cycle

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