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Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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

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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

An example of a homeostatically controlled variable: blood levels of glucose in a human. An example of a homeostatically controlled variable: blood levels of glucose in a human.
Movement of sound waves through the human ear. Movement of sound waves through the human ear.
The Human Eye The Human Eye
Serotonin and Risk-Taking Behavior Serotonin and Risk-Taking Behavior
Heat Stress and Wind Chill: Indices of Human Discomfort Heat Stress and Wind Chill: Indices of Human Discomfort
Human Body Parts Human Body Parts
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

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