The adult human brain weighs about 3 pounds (1,300-1,400 g).
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An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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When you take a step, you are using up to 200 muscles.
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It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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Chewing gum boosts your brain power.
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The human brain doesn't stop developing until about 25 years old.
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After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
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