When I would walk outside on a winter's day in Fairbanks, a mere 125 miles from the Arctic Circle, I would divert my breath up to my eyes (the only exposed area of my body) to keep them from freezing shut.

BBC: This is Snow & Skiing week

We know that about 46% of all people exposed to the service keep it after the trial period.

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Far from their homeland, they are particularly exposed to hunger and diseases, and they struggle to keep their traditions.

BBC: Colombia's indigenous peoples face uncertain future

The thwarted attack, in which suspect Umar Farouk AbdulMutallab allegedly tried to ignite a bomb hidden in his underwear, has rattled air carriers and passengers, largely because it exposed gaps in a vast and expensive security net designed to keep terrorists off planes.

CNN: STORY HIGHLIGHTS

Half were exposed to the gas at room temperature and half in a warm environment to keep their body temperatures from dropping.

ECONOMIST: Researchers find hydrogen sulphide can lower metabolism

Every day people are exposed to scores of radio, TV, newspapers, and commercial messages that keep their minds engaged, and at times confused.

FORBES: How To Get Your Message Across