 People are avoiding activities they love to do. They're making lifestyle changes. Among those who say they feel older than their age, 55% blame body pain. 48% say it's because they get tired easily. 31% say it's because they feel less active. The poll surveyed 2,000 Americans with a margin of error of plus or minus 2.2 percentage points. Rob Morocco is the CEO of Motive Health, a company that focuses on knee pain, which commissioned the study.