23 1/2

Welcome to your 23 1/2

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What is the intervention the speaker believes will help improve the lives of every person?

According to the study done by Stephen Blair, what was the greatest risk factor for preventable death?

In a second study focusing on obesity, Dr. Blair found that obese participants who exercised and didn't experience weight loss showed less health consequences than those who did not exercise at all.

What is an effective way to get out and exercise, according to the speaker?

What does the speaker mean when he says 23 1/2 hours?