A to Z Health Guide 2007

The scientific bulletin of the year may be the stem-cell breakthrough. But 2007 provided a whole alphabet of big medical news. TIME's A-to-Z guide reviews them

By Coco Masters, Alice Park, Carolyn Sayre, Tiffany Sharples, Alexandra Silver and Kate Stinchfield

Hand-Washing

HARRY CAMPBELL FOR TIME
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Hygiene is important, especially as resistance against antibiotics rises among bacteria. But hand-washing after using public restrooms is down.

2007
77% of men and women wash their hands after using a public restroom

2005
84% of men and women wash their hands after using a public restroom

2007
88% of women wash up, vs. 66% of men

2005
90% of women wash up, vs. 75% of men

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