Britain's top athletes are on their marks for the 2004 Olympics, which begin on Friday. But how will training at an elite level affect them long-term? Diane Taylor asks four past medal-winners about their health now.
Ellie Levenson: Despite, or perhaps because of, his recent health scares, Tony Blair sticks to a strict fitness regime. According to recent newspaper reports, this involves eating plenty of fruit, regular exercise and avoiding alcohol.
It's free, you can do it anywhere, and it burns more calories than any other exercise. Is it any wonder that good old running is the newest fitness craze, asks Emily Wilson.