Here are some more Strange Facts about Human Being :
- · The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
- · The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.
- · The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
- · People with blue eyes see better in dark.
- · We exercise at least 30 muscles when we smile.
- · Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.
- · Our brain is more complex than the most powerful computer and has over 100 billion nerve cells.
- · People who ride on roller coasters have a higher chance of having a blood clot in the brain.
- · When a person dies, hearing is usually the first sense to go.
- · The animal responsible for the most human deaths world-wide is the mosquito.
- · Right handed people live, on average, nine years longer than left-handed people.
- · Chewing gum while peeling onions will keep you from crying.
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