Harvard Classics: How Just Thinking About Your Exercise Can make You Healthier

67% of hotel chaimber maids report that they never exercise. While that may seem like that’s an uninteresting statistic, consider that chaimber maids are engaged in physical activity for nearly their entire day. Yet, when asked, the vast majority didn’t view their work as exercise.

Beyond that, even though maids exercise everyday, their weight, blood pressure, body fat, waist-to-hip ratio, and body mass index were the same as those who didn’t exercise.

When Harvard researchers informed a control group of maids about how many calories they were burning on the job, those health indicators began to improve — without the maids doing additional work.

How can that be possible? How is this related to the placebo effect? And just how powerful is a change in mindset?

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