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Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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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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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006. The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
External acoustic meatus External acoustic meatus
Basal ganglia: overstimulation of dopamine receptors may be responsible for schizophrenia Basal ganglia: overstimulation of dopamine receptors may be responsible for schizophrenia
Contrast of ventilation and external and internal respiration. Contrast of ventilation and external and internal respiration.
Involvement of LDL receptors in cholesterol uptake and metabolism Involvement of LDL receptors in cholesterol uptake and metabolism
An infant begins to notice the external environment by the age of 4 to 8 months An infant begins to notice the external environment by the age of 4 to 8 months
Video: Automated external defibrillator (AED)

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