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Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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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.

Measures of ocean chlorophyll-a concentrations from part of Atlantic Canada in (a) January 2006, and Measures of ocean chlorophyll-a concentrations from part of Atlantic Canada in (a) January 2006, and
Avoiding High-Pollution Exercise Times Avoiding High-Pollution Exercise Times
Weather Typically Associated with Cold Front (North America) Weather Typically Associated with Cold Front (North America)
Using the fingertips of one hand, make contact with an area on the back with high fascial ... Using the fingertips of one hand, make contact with an area on the back with high fascial ...
Dried fruits often have sulfur dioxide or other sulfites added to them to preserve color and flavor Dried fruits often have sulfur dioxide or other sulfites added to them to preserve color and flavor
During a period of high power demand, the voltage output of the power company is reduced by ... During a period of high power demand, the voltage output of the power company is reduced by ...
Video: Photosynthesis overview Animation

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