Is the world about to be running on empty?

[Rasputin]

In France, fishermen are blockading oil refineries. In Britain, lorry drivers are planning a day of action. In the US, the car maker Ford is to cut production of gas-guzzling sports utility vehicles and airlines are jacking up ticket prices. Global concerns about fuel prices are reaching fever pitch...

[horiyeh]

Q: I've heard that cardiovascular exercise can prolong life. Is this true?

A: Your heart is only good for so many beats, and that's it... don't waste them on exercise. Everything wears out eventually. Speeding up your heart will not make you live longer; that's like saying you...