Mr Shevchenko insisted that the gas only killed people who were ill, tired, hungry or stressed.

ECONOMIST: Vladimir Putin's government pushes the questions away

Citizens near ground zero in New York have provided sandwiches, drinks and clean clothes to the tired and hungry rescue workers.

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My, were we tired and hungry after all that running.

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All slums tend to have garbage pickers, but most do not have this type of consciousness, and most are so tired and hungry and often ill that they barely survive.

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Some stress-reactive people time their commutes to avoid traffic, set time limits on stressful meetings or schedule onerous tasks at times when they aren't tired or hungry, says Ms. Martin, founder of WorkLifeNation.com, a website on managing stress.

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"Regardless of how hard they worked or how how tired or how hungry they are, it's a tremendous victory for them, " Park said.

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While many Kenyans say they are tired of the accusations and are hungry for change, many others credit Kibaki with keeping the country's economy strong.

CNN: Kenya president narrows poll gap