The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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One quarter of the human brain is used to control the eyes.
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Sex burns about 360 calories per hour.
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Laughing could dramatically improve your health – and be as good for you as a deep state of meditation, researchers have found.
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Your skin is actually an organ.
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You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
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Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
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