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Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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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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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

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On average, the stomach produces 2 L of hydrochloric acid per day.

The functional structure of the peripheral nervous system. (A) Afferent or sensory neurons carry sen The functional structure of the peripheral nervous system. (A) Afferent or sensory neurons carry sen
Coronary artery bypass graft (CABG). The grafts are often obtained from the patient’s saphenous vein Coronary artery bypass graft (CABG). The grafts are often obtained from the patient’s saphenous vein
Concealed spider Concealed spider
Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S
Reptiles (lizards, snakes, and turtles) often carry Salmonella Reptiles (lizards, snakes, and turtles) often carry Salmonella
Wind that lifts the hairy modified sepals of a dandelion (Taraxacum) fruit may carry the attached se Wind that lifts the hairy modified sepals of a dandelion (Taraxacum) fruit may carry the attached se
Video: Types of synapses - electrical & chemical

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