Unfortunately, you can't reach a ripe old age by changing your walking speed. According to researcher Dr. Stephanie Studenski, a professor of medicine at the University of Pittsburgh:
"Your body chooses the walking speed that is best for you, and that is your speed, your health indicator," Studenski said. "And that's what it really is: an indicator. Going out and walking faster does not necessarily mean you will suddenly live longer. You still need to address the underlying health issues."
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