The "size matters" myth has been ground to dust in other sports in recent years.
But modern would-be immortals know that old-fashioned cure-alls, like the ground mummy dust to which hopeful aristocrats turned in medieval times, were only so much quackery.
Entire homes have been ground to dust.
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"I had restricted lung breathing, stomach problems" related to breathing toxic dust at ground zero, Russo said.
The new safety level is about 100 times higher than the background level of dust at ground level.
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"It's a war that I feel we just won, " said one former New York firefighter -- who says he was forced to retire due to lung ailments suffered from dust at ground zero -- the site where the World Trade Center's twin towers once stood.
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Later, after the buildings fell, a cameraman and I cut through the dust and walked toward ground zero, where the sky was filled with fine pieces of glass and acrid smoke.
"In contrast to, say, dust mites, which are heavy and sink quickly to the ground, both cat and dog dander are light and fluffy allergens, and they stay afloat for hours, " says Dr. Miranowski.
He crested a hill alone, with no cover but the dust kicked up by the storm of bullets still biting into the ground.
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The extra weight and damaged engine meant he was forced to fly for 3 miles (4.8km) at around 20 ft (6m) from the ground, rather than the usual 50 ft (15m), creating a dust cloud which obscured his view.
He may occupy the moral high ground, but most often he's the one picking himself out of the dust.
Freed believes that the lingering cloud of dust -- caused by the towers' collapse and the digging out of ground zero -- caused some of her long- and short-term medical problems, such as her "WTC cough" and other respiratory issues.
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