Sharks Smell Blood from a Mile Away
Many a good (and ridiculous) scary movie
scene has relied on the fear of sharks' super-
sensitive sense of smell, being able to detect a
single drop of blood in an ocean. But as the
American Museum of Natural History explains,
"While some sharks can detect blood at one
part per million, that hardly qualifies as the
entire ocean."
Swimming Right After Eating is Dangerous
You know the deal: Wait at least 30 minutes
after eating before jumping into the pool, or
else your digestive tract will use up the blood
that should be going to your arms and legs.
This is nonsense, according to Duke Primary
Care Timberlyne physician Mark Messick, who
says, "The body does supply extra blood to aid
in digestion, but not enough blood to keep your
arm and leg muscles from properly functioning.
Your biggest danger related to eating and
swimming is probably a minor cramp."
Napoleon Was Short
Anyone who has been accused of having "a
Napoleon complex" was probably not the
tallest guy in the room. But while the
perception persists that this historical giant was
in reality a tiny guy, it's based on little actual
fact. In truth, he was a respectable (especially
in France at that time) 5'7".
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