Dust Is a Part of You

(HealthDayNews) -- Did you know that most of the dust you see either floating in a shaft of sunlight or gathering on your furniture is you?

Eighty percent of dust is dead human skin cells. Each day you lose 10 billion fragments, sloughed by the rubbing action of your skin against your clothes each time you move, even with every breath.

"The Body Book" says that over your lifetime, you will shed 40 pounds of dead skin cells. That's enough to fill a large suitcase.