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Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

The internal organization of cells, tissues, organs, and organ systems in a mammal. The internal organization of cells, tissues, organs, and organ systems in a mammal.
Feedforward events can be conditioned to external stimuli. Feedforward events can be conditioned to external stimuli.
The brain. (a) Superior (top) view. (b) Sagittal view of a sectioned brain to reveal internal featur The brain. (a) Superior (top) view. (b) Sagittal view of a sectioned brain to reveal internal featur
Internal view of the heart with aorta, vena cava, and pulmonary arteries and veins. Internal view of the heart with aorta, vena cava, and pulmonary arteries and veins.
External female genitalia External female genitalia
External anatomy of the heart External anatomy of the heart
Video: Sigmoidoscopy

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