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People about to have surgery must tell their health care providers about all supplements they take.

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Green tea is able to stop the scent of garlic or onion from causing bad breath.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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