Clinton was on 'frenetic pace' before heart procedure

[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2010/images/02/11/art.clinton.haiti.file.gi.jpg caption="Former President Bill Clinton's heart troubles come as he was embarking on a busy schedule, recently working on relief efforts for earthquake- ravaged Haiti."](CNN) - Former President Bill Clinton's heart troubles come as he was embarking on a busy schedule, recently working on relief efforts for earthquake- ravaged Haiti.

On Thursday, Clinton was hospitalized at the Columbia Campus of New York-Presbyterian Hospital after experiencing chest pain, according to Douglas Band, counselor to the former president. Two stents were placed in one of his coronary arteries.

David Gergen, CNN senior political analyst, said that Clinton was "exhausted" and had a cold after coming back from his recent trip to Haiti.

Gergen said that his fast-paced, globetrotting schedule reminded him of former President Theodore Roosevelt.

"They soaked up information ... and had a real energy for life," he said.

A close Clinton friend told CNN that despite changing some habits after a successful quadruple bypass surgery in 2004, he still works long days and stays up late.

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