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Your body has about 2 to 5 million sweat glands.

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The smallest bone in the human body is the stapes, located in the middle ear.

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The longest bone in the human body is the femur, or thigh bone.

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The human body has 206 bones, but babies are born with around 270 bones.

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Your bones are constantly being replaced; the entire skeleton is renewed about every 10 years.

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The human heart beats around 100,000 times per day.

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The strongest muscle in the human body is the masseter, or jaw muscle.

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The human brain contains about 86 billion neurons.

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Your skin is the largest organ in your body.

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The average adult human body is approximately 60% water.