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"  We know that cancer cells look and act way different from normal, healthy cells. But it turns out that they might smell differently, too.  Scientists at Philadelphia&amp;#039;s Monell Chemical Senses Center found that a nanotechnolgy-based sensor can tell the difference between cancerous cells and regular cells based on their scents, which may be a huge breakthrough for cancer research and survival.  Because the treatment would be non-invasive, it might be easier and less time-consuming for doctors to perform, plus it may make people more inclined to get tested. Since melanoma is responsible for about 75 percent of skin cancer deaths and early detection is so important for survival rate, an easier, less painful procedure could save tons of lives.  Still, the best defense against skin cancer isn&amp;#039;t finding it sooner rather than later: It&amp;#039;s staying out of the sun to begin with. (Easier said that done, of course, so at least make sure to slather on that sunscreen before hitting the beach.)  Want more from Natasha? Follow her on Twitter or find her on Facebook. Photo: Jupiter Images "^^<http://www.w3.org/2001/XMLSchema#string>
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