Take Heart

When Bob Grinstead landed in Bangkok in March with his wife and daughter, he might have been mistaken for a typical tourist. But the 70-year-old retired computer salesman from Atlanta wasn't in any shape for sightseeing. Since suffering a massive heart attack in 1990, he'd undergone two bypass surgeries and two dozen angioplasties. By last year, any physical effort brought on chest pains—even taking a shower left him exhausted. After his doctors told him there was nothing more they could do, Grinstead turned to the Internet for ideas. Countless searches and phone calls later, he was on a plane to Thailand...

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